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

The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as £345. However, be on the lookout for offers from Finnair and Aer Lingus, 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 20 days before your planned departure. Booking around this time can save you about 55% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £422 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £553.

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

The best pricing can be found in the month of April. Prices to Delaware from Ireland average £459. You can even find prices in April for less than £459, as users have found deals to Delaware from as low as £328. 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 22%.

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.

£519+ Flights from Ireland to Delaware

Cheap flight deals from Ireland to Delaware

Round-trip from	£357
One-way from	£345
Popular in	July
Cheapest in	April
Average price	£378

KLM
17/9-29/9
3 total stops
27h 12m total
Ireland to Delaware

Search Deals

JetBlue
20/5
1 total stop
10h 58m total
Ireland to Delaware

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£49 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 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 24 April 2025.

Wed 17/908:55DUB - PHL

2 stops15h 27mKLM

Mon 29/917:15PHL - DUB

1 stop11h 45mKLM

Deal found 23/4£357

Wed 3/905:55DUB - PHL

2 stops16h 19mDelta

Sun 21/917:59PHL - DUB

2 stops16h 01mDelta

Deal found 23/4£369

Fri 2/508:35DUB - PHL

1 stop12h 45mBritish Airways

Sat 10/518:30PHL - DUB

1 stop10h 05mBritish Airways

Deal found 23/4£372

Wed 17/916:20DUB - PHL

Nonstop7h 40mAer Lingus

Mon 29/920:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 23/4£376

Thu 1/509:30DUB - PHL

Nonstop7h 10mFinnair

Wed 7/518:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 23/4£386

Tue 6/509:30DUB - PHL

Nonstop7h 00mMultiple Airlines

Tue 13/522:10PHL - DUB

1 stop12h 50mMultiple Airlines

Deal found 22/4£394

Thu 1/511:45DUB - PHL

1 stop15h 26mAmerican Airlines

Sat 10/513:44PHL - DUB

1 stop10h 46mAmerican Airlines

Deal found 23/4£398

Wed 12/1109:00DUB - PHL

2 stops30h 27mUnited Airlines

Sun 30/1106:10PHL - DUB

1 stop22h 55mUnited Airlines

Deal found 23/4£436

Fri 13/610:40DUB - PHL

1 stop12h 55mJetBlue

Thu 26/619:20PHL - DUB

1 stop8h 40mJetBlue

Deal found 23/4£460

Mon 9/609:30DUB - PHL

Nonstop7h 10mIberia

Thu 19/618:50PHL - DUB

Nonstop6h 40mIberia

Deal found 23/4£511

Sat 25/1020:05DUB - PHL

3 stops30h 11mScandinavian Airlines

Thu 6/1109:30PHL - DUB

3 stops27h 40mScandinavian Airlines

Deal found 23/4£1,098

Thu 1/518:50DUB - PHL

2 stops32h 38mTAP AIR PORTUGAL

Wed 7/510:16PHL - DUB

2 stops26h 49mTAP AIR PORTUGAL

Deal found 23/4£1,238

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 24 April 2025.

Wed 17/908:55DUB - PHL

2 stops15h 27mKLM

Mon 29/917:15PHL - DUB

1 stop11h 45mKLM

Deal found 23/4£357

Wed 3/905:55DUB - PHL

2 stops16h 19mDelta

Sun 21/917:59PHL - DUB

2 stops16h 01mDelta

Deal found 23/4£369

Wed 3/909:30DUB - PHL

Nonstop7h 15mAmerican Airlines

Sun 21/918:30PHL - DUB

1 stop10h 10mAmerican Airlines

Deal found 23/4£372

Wed 3/908:30DUB - PHL

1 stop12h 55mBritish Airways

Sun 21/922:20PHL - DUB

1 stop10h 55mBritish Airways

Deal found 23/4£373

Wed 17/916:20DUB - PHL

Nonstop7h 40mAer Lingus

Mon 29/920:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 23/4£376

Tue 6/509:30DUB - PHL

Nonstop7h 00mMultiple Airlines

Tue 13/522:10PHL - DUB

1 stop12h 50mMultiple Airlines

Deal found 22/4£394

Fri 13/610:40DUB - PHL

1 stop12h 55mJetBlue

Thu 26/619:20PHL - DUB

1 stop8h 40mJetBlue

Deal found 23/4£460

Mon 9/609:30DUB - PHL

Nonstop7h 10mIberia

Thu 19/618:50PHL - DUB

Nonstop6h 40mIberia

Deal found 23/4£511

Thu 5/609:30DUB - PHL

Nonstop7h 10mFinnair

Thu 12/618:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 23/4£525

Thu 26/609:20DUB - PHL

1 stop17h 47mUnited Airlines

Thu 3/710:40PHL - DUB

1 stop15h 30mUnited Airlines

Deal found 23/4£559

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 24 April 2025.

Wed 17/916:20DUB - PHL

Nonstop7h 40mAer Lingus

Mon 29/920:30PHL - DUB

Nonstop6h 40mAer Lingus

Deal found 23/4£376

Wed 3/909:30DUB - PHL

Nonstop7h 15mAmerican Airlines

Sun 21/918:45PHL - DUB

Nonstop6h 45mAmerican Airlines

Deal found 23/4£387

Tue 15/709:30DUB - PHL

Nonstop7h 15mMultiple Airlines

Thu 24/718:50PHL - DUB

Nonstop6h 40mMultiple Airlines

Deal found 23/4£510

Mon 9/609:30DUB - PHL

Nonstop7h 10mIberia

Thu 19/618:50PHL - DUB

Nonstop6h 40mIberia

Deal found 23/4£511

Thu 5/609:30DUB - PHL

Nonstop7h 10mFinnair

Thu 12/618:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 23/4£525

Last-minute flights from Ireland to Delaware
Discover last-minute flight deals from Ireland to Delaware. Data last updated 24 April 2025 and is based on user searches.

Tue 29/409:50DUB - PHL

1 stop10h 53mUnited Airlines

Tue 6/515:10PHL - DUB

2 stops13h 35mUnited Airlines

Deal found 22/4£522

Thu 1/509:30DUB - PHL

Nonstop7h 10mFinnair

Wed 7/518:50PHL - DUB

Nonstop6h 40mFinnair

Deal found 23/4£386

Thu 1/511:45DUB - PHL

1 stop15h 26mAmerican Airlines

Sat 10/513:44PHL - DUB

1 stop10h 46mAmerican Airlines

Deal found 23/4£398

Thu 1/514:15DUB - PHL

2 stops13h 13mMultiple Airlines

Wed 7/517:30PHL - DUB

2 stops14h 45mMultiple Airlines

Deal found 23/4£610

Thu 1/518:50DUB - PHL

2 stops32h 38mTAP AIR PORTUGAL

Wed 7/510:16PHL - DUB

2 stops26h 49mTAP AIR PORTUGAL

Deal found 23/4£1,238

Fri 2/508:35DUB - PHL

1 stop12h 45mBritish Airways

Sat 10/518:30PHL - DUB

1 stop10h 05mBritish Airways

Deal found 23/4£372

Fri 2/505:55DUB - PHL

2 stops20h 14mDelta

Sat 10/507:20PHL - DUB

1 stop22h 25mDelta

Deal found 23/4£418

Tue 6/509:30DUB - PHL

Nonstop7h 00mMultiple Airlines

Tue 13/522:10PHL - DUB

1 stop12h 50mMultiple Airlines

Deal found 22/4£394

Wed 7/505:55DUB - PHL

2 stops20h 36mDelta

Wed 14/506:00PHL - DUB

1 stop23h 45mDelta

Deal found 23/4£415

Thu 15/510:40DUB - PHL

1 stop16h 41mJetBlue

Thu 4/915:00PHL - DUB

1 stop13h 00mJetBlue

Deal found 23/4£469

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 24 April 2025.

Tue 20/510:40DUB - PHL

1 stop10h 58mJetBlue

Deal found 23/4£345

Thu 22/509:30DUB - PHL

Nonstop7h 00mFinnair

Deal found 23/4£447

Sun 17/812:50DUB - PHL

1 stop15h 24mMultiple Airlines

Deal found 23/4£475

Mon 28/416:20DUB - PHL

Nonstop7h 40mAer Lingus

Deal found 23/4£515

Sun 24/821:45DUB - PHL

3 stops28h 29mScandinavian Airlines

Deal found 23/4£1,598

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 17/9

08:55-19:22

2 stops15h 27m

Philadelphia

Mon 29/9

17:15-10:00

1 stop11h 45m

£357

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 3/9

05:55-17:14

2 stops16h 19m

Philadelphia

Sun 21/9

17:59-15:00

2 stops16h 01m

£369

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 3/9

09:30-11:45

Nonstop7h 15m

Philadelphia

Sun 21/9

18:30-09:40

1 stop10h 10m

£372

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 3/9

08:30-16:25

1 stop12h 55m

Philadelphia

Sun 21/9

22:20-14:15

1 stop10h 55m

£373

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Wed 17/9

16:20-19:00

Nonstop7h 40m

Philadelphia

Mon 29/9

20:30-08:10

Nonstop6h 40m

£376

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Tue 6/5

09:30-11:30

Nonstop7h 00m

Philadelphia

Tue 13/5

22:10-16:00

1 stop12h 50m

£394

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Fri 13/6

10:40-18:35

1 stop12h 55m

Philadelphia

Thu 26/6

19:20-09:00

1 stop8h 40m

£460

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Mon 9/6

09:30-11:40

Nonstop7h 10m

Philadelphia

Thu 19/6

18:50-06:30

Nonstop6h 40m

£511

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 5/6

09:30-11:40

Nonstop7h 10m

Philadelphia

Thu 12/6

18:50-06:30

Nonstop6h 40m

£525

DublinPhiladelphia

DUB - PHL

DUBPHL

Dublin

Thu 26/6

09:20-22:07

1 stop17h 47m

Philadelphia

Thu 3/7

10:40-07:10

1 stop15h 30m

£559

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 15 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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Delaware

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

7,920 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

7,920 reviews

Delta

8.0

Very Good

7,920 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

7,920 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

1,272 reviews

Delta

8.0

Very Good

7,920 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

8,685 reviews

Delta

8.0

Very Good

7,920 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

JetBlue

7.3

Good

2,924 reviews

Delta

8.0

Very Good

7,920 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 JetBlue, with whom users have recently found tickets for as low as £345. However, be on the lookout for offers from Finnair and Aer Lingus, 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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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 £345

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 20/5. 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 24 April 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 24 April 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 24 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Delaware that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Delaware

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 24 April 2025.