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Cheap flights from London Heathrow Airport to Duluth from £821

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DLH
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Heathrow to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 March 2025.

Round-trip from

£821

Popular in

January

Cheapest in

February

Average price

£1,027
United Airlines
  • United Airlines
  • 8/5-15/5
  • 4 total stops
  • 54h 00m total
  • London to Duluth
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£171 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£66 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Find flight deals from Heathrow to Duluth

Cheapest flights from Heathrow to Duluth
Explore the most affordable flight options available from Heathrow to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Thu 8/513:45LHR - DLH
2 stops38h 05mUnited Airlines
Thu 15/508:00DLH - LHR
2 stops15h 55mUnited Airlines
Deal found 23/3£821
Thu 8/512:25LHR - DLH
1 stop13h 03mDelta
Thu 15/512:00DLH - LHR
1 stop19h 10mDelta
Deal found 23/3£865
Wed 16/712:45LHR - DLH
1 stop16h 52mMultiple Airlines
Thu 21/816:25DLH - LHR
2 stops15h 20mMultiple Airlines
Deal found 24/3£1,437
Wed 16/712:45LHR - DLH
1 stop16h 52mKLM
Wed 20/818:10DLH - LHR
2 stops13h 40mKLM
Deal found 24/3£1,441

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 March 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Duluth that are best for you.

Fly from

Heathrow

Fly to

Duluth

Route

Depart

Return

Price

LondonDuluth

LHR - DLH

LHRDLH

London Heathrow

Thu 8/5

13:45-21:50

2 stops38h 05m

Duluth Intl

Thu 15/5

08:00-05:55

2 stops15h 55m

£821

LondonDuluth

LHR - DLH

LHRDLH

London Heathrow

Thu 8/5

12:25-19:28

1 stop13h 03m

Duluth Intl

Thu 15/5

12:00-13:10

1 stop19h 10m

£865

LondonDuluth

LHR - DLH

LHRDLH

London Heathrow

Wed 16/7

12:45-23:37

1 stop16h 52m

Duluth Intl

Thu 21/8

16:25-13:45

2 stops15h 20m

£1,437

LondonDuluth

LHR - DLH

LHRDLH

London Heathrow

Wed 16/7

12:45-23:37

1 stop16h 52m

Duluth Intl

Wed 20/8

18:10-13:50

2 stops13h 40m

£1,441

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Best time to book a flight from Heathrow to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Heathrow 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 London Heathrow Airport to Duluth

Rainfall in Duluth by month

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

In terms of precipitation, rainfall in Duluth ranges from 14.0 - 92.0 inches per month. September is typically the wettest month, when rainfall can reach 92.0 mm. February is typically the driest time to visit Duluth when rainfall is around 14.0 mm.

Temperature in Duluth by month

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

If weather is an important factor for your trip to Duluth, 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 19.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -11.0 C).

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Duluth. Reviews last updated 25 March 2025.
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

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

  • What airport do you fly into for flights to Duluth from London Heathrow?

    Duluth Intl (DLH) is the airport you will fly into if you book a flight from London Heathrow to Duluth. You should not have trouble finding flights to Duluth Intl from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Duluth airport from London Heathrow. It is only a 5.8 mi journey from Duluth Intl (DLH) to Duluth’s city center.

  • What are the cheapest airlines flying from London Heathrow Airport to Duluth round-trip?

    Our cheapest airline available from London Heathrow Airport to Duluth is United Airlines. Our recent data shows that you can find tickets from as low as £821 on this airline. Additional options worth looking into are Delta and KLM, starting at £865 and £1,441 round-trip.

  • Can I find deals for flights from Heathrow to Duluth that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Duluth?

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

  • Can I find deals for business class flights from Heathrow to Duluth?

    Yes. Cheapflights offers flight deals from Heathrow to Duluth 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

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Top airline flying from Heathrow to Duluth

Discover the top airline that operate flights from Heathrow to Duluth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£626Average£1,051FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Duluth?

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 Duluth from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Duluth?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Duluth for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Duluth with no change fees?

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

Can Cheapflights notify me if prices for flights from Heathrow to Duluth become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Duluth flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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