What are the cheapest airlines to fly from Ireland to Delaware one-way?

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £364. However, be on the lookout for offers from Aer Lingus and British Airways, as they are both options that can get you from Ireland to Delaware for a low price.

How far in advance should I book a flight from Ireland to Delaware?

To save on the cost of your flight from Ireland to Delaware, book at least 23 days before your planned departure. Booking around this time can save you about 52% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £444 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £539.

What is the cheapest month to fly from Ireland to Delaware?

The best pricing can be found in the month of February. Prices to Delaware from Ireland average £486. You can even find prices in February for less than £486, as users have found deals to Delaware from as low as £319. The month of July appears to be one of the more expensive times to travel to Delaware from Ireland. Flying in the targeted month can save you up to 26%.

What is the cheapest time of day to fly from IE to DE?

When flying from Ireland to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Ireland to Delaware that include hotel bookings?

Yes. In addition to deals on Ireland to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ireland to Delaware?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Delaware.

Can I find deals for business class flights from Ireland to Delaware?

Yes. Cheapflights offers flight deals from Ireland to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£537+ Flights from Ireland to Delaware

Cheap flight deals from Ireland to Delaware

Round-trip from	£376
One-way from	£254
Popular in	July
Cheapest in	February
Average price	£404

British Airways
2/4-9/4
1 total stop
17h 45m total
Ireland to Delaware

Search Deals

3/4
3 total stops
51h 15m total
Ireland to Delaware

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from Ireland to Delaware

Cheapest flights from Ireland to Delaware
Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Wed 2/409:30DUB - PHL

Nonstop7h 30mBritish Airways

Wed 9/418:30PHL - DUB

1 stop10h 15mBritish Airways

Deal found 20/2£376

Wed 2/409:30DUB - PHL

Nonstop7h 30mMultiple Airlines

Wed 9/419:00PHL - DUB

Nonstop6h 30mMultiple Airlines

Deal found 20/2£391

Sat 1/314:05DUB - PHL

Nonstop7h 30mFinnair

Sun 9/322:15PHL - DUB

Nonstop6h 25mFinnair

Deal found 20/2£398

Sun 2/309:00DUB - PHL

1 stop18h 36mUnited Airlines

Sun 9/315:00PHL - DUB

1 stop15h 05mUnited Airlines

Deal found 20/2£419

Thu 1/509:30DUB - PHL

Nonstop7h 10mIberia

Sat 10/518:50PHL - DUB

Nonstop6h 40mIberia

Deal found 20/2£434

Thu 2/1011:30DUB - PHL

1 stop15h 00mJetBlue

Sat 18/1015:56PHL - DUB

1 stop11h 24mJetBlue

Deal found 19/2£448

Wed 12/305:55DUB - PHL

2 stops19h 20mDelta

Wed 19/317:33PHL - DUB

2 stops19h 07mDelta

Deal found 19/2£449

Wed 3/909:30DUB - PHL

Nonstop7h 15mAmerican Airlines

Sun 21/918:30PHL - DUB

1 stop10h 10mAmerican Airlines

Deal found 20/2£504

Wed 20/805:55DUB - PHL

1 stop15h 05mLufthansa

Sun 31/817:35PHL - DUB

1 stop18h 20mLufthansa

Deal found 21/2£538

Sat 23/809:30DUB - PHL

Nonstop7h 15mAer Lingus

Sat 6/920:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 20/2£544

Thu 6/318:40DUB - PHL

2 stops31h 40mSWISS

Thu 13/318:45PHL - DUB

2 stops37h 20mSWISS

Deal found 20/2£581

Fri 28/204:25DUB - PHL

2 stops34h 12mTAP AIR PORTUGAL

Sun 9/306:00PHL - DUB

2 stops24h 20mTAP AIR PORTUGAL

Deal found 20/2£902

Best flights from Ireland to Delaware
Discover carefully curated flight deals from Ireland to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 February 2025.

Wed 2/409:30DUB - PHL

Nonstop7h 30mBritish Airways

Wed 9/418:30PHL - DUB

1 stop10h 15mBritish Airways

Deal found 20/2£376

Wed 2/409:30DUB - PHL

Nonstop7h 30mMultiple Airlines

Wed 9/419:00PHL - DUB

Nonstop6h 30mMultiple Airlines

Deal found 20/2£391

Thu 1/509:30DUB - PHL

Nonstop7h 10mFinnair

Sun 4/518:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 20/2£401

Thu 1/509:30DUB - PHL

Nonstop7h 10mIberia

Sat 10/518:50PHL - DUB

Nonstop6h 40mIberia

Deal found 20/2£434

Wed 12/305:55DUB - PHL

2 stops19h 20mDelta

Wed 19/317:33PHL - DUB

2 stops19h 07mDelta

Deal found 19/2£449

Wed 2/405:55DUB - PHL

2 stops15h 58mKLM

Wed 9/408:05PHL - DUB

1 stop19h 40mKLM

Deal found 20/2£465

Wed 5/309:00DUB - PHL

1 stop11h 45mUnited Airlines

Wed 12/310:35PHL - DUB

1 stop19h 30mUnited Airlines

Deal found 19/2£467

Tue 6/511:30DUB - PHL

1 stop16h 57mJetBlue

Tue 24/618:35PHL - DUB

1 stop8h 45mJetBlue

Deal found 19/2£496

Wed 20/805:55DUB - PHL

1 stop15h 05mLufthansa

Sun 31/817:35PHL - DUB

1 stop18h 20mLufthansa

Deal found 21/2£538

Thu 6/318:40DUB - PHL

2 stops31h 40mSWISS

Thu 13/318:45PHL - DUB

2 stops37h 20mSWISS

Deal found 20/2£581

Sat 22/314:05DUB - PHL

Nonstop7h 20mAer Lingus

Sat 5/420:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 20/2£587

Sat 5/716:20DUB - PHL

Nonstop7h 40mAmerican Airlines

Sat 19/718:50PHL - DUB

Nonstop6h 40mAmerican Airlines

Deal found 20/2£726

Direct flights from Ireland to Delaware
Explore direct flight options from Ireland to Delaware based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 February 2025.

Wed 2/409:30DUB - PHL

Nonstop7h 30mMultiple Airlines

Wed 9/419:00PHL - DUB

Nonstop6h 30mMultiple Airlines

Deal found 20/2£391

Thu 1/509:30DUB - PHL

Nonstop7h 10mFinnair

Sun 4/518:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 20/2£401

Thu 1/509:30DUB - PHL

Nonstop7h 10mIberia

Sat 10/518:50PHL - DUB

Nonstop6h 40mIberia

Deal found 20/2£434

Sat 22/314:05DUB - PHL

Nonstop7h 20mAer Lingus

Sat 5/420:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 20/2£587

Sat 5/716:20DUB - PHL

Nonstop7h 40mAmerican Airlines

Sat 19/718:50PHL - DUB

Nonstop6h 40mAmerican Airlines

Deal found 20/2£726

Last-minute flights from Ireland to Delaware
Discover last-minute flight deals from Ireland to Delaware. Data last updated 21 February 2025 and is based on user searches.

Fri 28/204:25DUB - PHL

2 stops34h 12mTAP AIR PORTUGAL

Sun 9/306:00PHL - DUB

2 stops24h 20mTAP AIR PORTUGAL

Deal found 20/2£902

Sat 1/314:05DUB - PHL

Nonstop7h 30mFinnair

Sun 9/322:15PHL - DUB

Nonstop6h 25mFinnair

Deal found 20/2£398

Sat 1/313:05DUB - PHL

2 stops15h 36mBritish Airways

Sun 9/322:15PHL - DUB

1 stop29h 40mBritish Airways

Deal found 20/2£429

Sat 1/305:55DUB - PHL

2 stops19h 05mDelta

Sun 9/306:00PHL - DUB

1 stop23h 45mDelta

Deal found 21/2£503

Sun 2/314:05DUB - PHL

Nonstop7h 30mMultiple Airlines

Sun 9/322:15PHL - DUB

1 stop14h 05mMultiple Airlines

Deal found 20/2£407

Sun 2/309:00DUB - PHL

1 stop18h 36mUnited Airlines

Sun 9/315:00PHL - DUB

1 stop15h 05mUnited Airlines

Deal found 20/2£419

Thu 6/318:40DUB - PHL

2 stops31h 40mSWISS

Thu 13/318:45PHL - DUB

2 stops37h 20mSWISS

Deal found 20/2£581

Wed 12/314:05DUB - PHL

Nonstop7h 20mBritish Airways

Wed 19/319:40PHL - DUB

1 stop12h 30mBritish Airways

Deal found 21/2£394

Wed 12/305:55DUB - PHL

2 stops19h 20mDelta

Wed 19/317:33PHL - DUB

2 stops19h 07mDelta

Deal found 19/2£449

Sat 22/314:05DUB - PHL

Nonstop7h 20mAer Lingus

Sat 5/420:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 20/2£587

One-way flights from Ireland to Delaware
Search for one-way flight options from Ireland to Delaware. Find affordable one-way fares based on user searches. Data last updated 21 February 2025.

Thu 3/413:05DUB - PHL

3 stops51h 15mMultiple Airlines

Deal found 20/2£254

Sun 18/512:50DUB - PHL

2 stops39h 49mWestJet

Deal found 21/2£364

Thu 3/416:20DUB - PHL

Nonstop7h 40mAer Lingus

Deal found 20/2£409

Sun 23/319:25DUB - PHL

1 stop25h 55mBritish Airways

Deal found 21/2£464

Tue 18/310:45DUB - PHL

2 stops16h 31mDelta

Deal found 20/2£622

Sat 22/314:05DUB - PHL

Nonstop7h 20mFinnair

Deal found 20/2£658

Mon 21/721:10DUB - PHL

3 stops29h 04mScandinavian Airlines

Deal found 21/2£1,804

Find flights from Ireland to Delaware within your budget

Fly from

Fly to

Route

Depart

Return

Price

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 2/4

09:30-12:00

Nonstop7h 30m

Philadelphia

Wed 9/4

18:30-09:45

1 stop10h 15m

£376

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 2/4

09:30-12:00

Nonstop7h 30m

Philadelphia

Wed 9/4

19:00-06:30

Nonstop6h 30m

£391

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 1/5

09:30-11:40

Nonstop7h 10m

Philadelphia

Sun 4/5

18:50-06:30

Nonstop6h 40m

£401

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 1/5

09:30-11:40

Nonstop7h 10m

Philadelphia

Sat 10/5

18:50-06:30

Nonstop6h 40m

£434

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 12/3

05:55-21:15

2 stops19h 20m

Philadelphia

Wed 19/3

17:33-16:40

2 stops19h 07m

£449

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 2/4

05:55-16:53

2 stops15h 58m

Philadelphia

Wed 9/4

08:05-08:45

1 stop19h 40m

£465

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 5/3

09:00-15:45

1 stop11h 45m

Philadelphia

Wed 12/3

10:35-10:05

1 stop19h 30m

£467

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Tue 6/5

11:30-23:27

1 stop16h 57m

Philadelphia

Tue 24/6

18:35-08:20

1 stop8h 45m

£496

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 20/8

05:55-16:00

1 stop15h 05m

Philadelphia

Sun 31/8

17:35-16:55

1 stop18h 20m

£538

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 6/3

18:40-21:20

2 stops31h 40m

Philadelphia

Thu 13/3

18:45-12:05

2 stops37h 20m

£581

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 20 results

Best time to book a flight from Ireland to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Ireland with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ireland to Delaware

Get recent, data-driven insights about flights from Ireland to Delaware including ideal travel times, pricing trends, and more.

Rainfall in Delaware by month

In terms of precipitation, rainfall in Delaware ranges from 73.0 - 108.0 inches per month. July is typically the wettest month, when rainfall can reach 108.0 mm. February is typically the driest time to visit Delaware when rainfall is around 73.0 mm.

Temperature in Delaware by month

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Delaware

Read through reviews of airlines operating flights from Ireland to Delaware, such as Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,212 reviews

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,568 reviews

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,759 reviews

Delta

8.0

Very Good

8,212 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from Ireland to Delaware one-way?
The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £364. However, be on the lookout for offers from Aer Lingus and British Airways, as they are both options that can get you from Ireland to Delaware for a low price.
Can I find deals for flights from Ireland to Delaware that include hotel bookings?
Yes. In addition to deals on Ireland to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Delaware?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Delaware.
Can I find deals for business class flights from Ireland to Delaware?
Yes. Cheapflights offers flight deals from Ireland to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ireland to Delaware

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London City to Boston flights

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London City to Las Vegas flights

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Gatwick to O'Hare Intl flights

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Direct flights to United States

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to Delaware?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Delaware from Ireland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ireland to Delaware?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ireland to Delaware for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ireland to Delaware with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ireland to Delaware flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ireland to Delaware become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Delaware from Ireland today and book when prices fit your budget.

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Cheap flights from Ireland to Delaware from £254

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Delaware

Keep the following information in mind while searching for Ireland to Delaware flight deals. Data was last updated 21 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ireland to Delaware

Cheapest flights from Ireland to DelawareExplore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Find flights from Ireland to Delaware within your budget

Best time to book a flight from Ireland to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Ireland with our price prediction graph.

Travel insights for flights from Ireland to Delaware

Get recent, data-driven insights about flights from Ireland to Delaware including ideal travel times, pricing trends, and more.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

Reviews of airlines servicing Delaware

Read through reviews of airlines operating flights from Ireland to Delaware, such as Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Ireland to Delaware one-way?

Can I find deals for flights from Ireland to Delaware that include hotel bookings?

How can I find direct flights from Ireland to Delaware?

Can I find deals for business class flights from Ireland to Delaware?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Delaware

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Delaware?

Why should you use Cheapflights to find cheap flight tickets from Ireland to Delaware?

Can Cheapflights find flights from Ireland to Delaware with no change fees?

Can Cheapflights notify me if prices for flights from Ireland to Delaware become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ireland to Delaware
Explore the most affordable flight options available from Ireland to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.