How do most travelers feel about United Airlines?

The average rating from 29 United Airlines reviews by Cheapflights users is 6.8 (out of a maximum rating of 10). If you are considering flying WAS-LON with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to London with United Airlines.

Does United Airlines service alternative airports for WAS-LON?

Those looking to travel from Washington, D.C. to London on United Airlines should know that there are other options for airports to fly into when visiting London. The most popular airport is London Heathrow, but for some, London Gatwick is the better option as it is closer to the end destination or even cheaper to fly into on United Airlines. If you are looking for a closer or different airport to depart from in Washington, D.C., United Airlines also flies out of Baltimore/Washington when traveling to London.

Can I get a flight from Washington, D.C. to London on United Airlines for under $800?

Cheapflights users have found 18 United Airlines flights for under $800 on the WAS-LON route. Prices on flights to London from Washington, D.C. can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Currently, the most affordable month to book a United Airlines flight from Washington, D.C. to London in November, with an average price of $652. Conversely, traveling with United Airlines from Washington, D.C. to London in June will be the most expensive, with an average cost of $1,114. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Fly United Airlines from Washington, D.C. to London as low as $409

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Cheapflights users flying from Washington, D.C. to London on United Airlines typically fly into London Heathrow and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to London in 2024

Popular in	June
Cheapest in	October
Average price (all airlines)	$761
One-way from	$409
Round-trip from	$571

Highest demand for flights from Washington, D.C. to London; 18% potential price increase.

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Best time to find cheap flights from Washington, D.C. to London; 3% potential price drop.

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Average price for all Washington, D.C. to London flights (one-way and round-trip).

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Cheapest one-way United Airlines flight from Washington, D.C. to London

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Cheapest round-trip United Airlines flight from Washington, D.C. to London

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Can I get a flight from Washington, D.C. to London on United Airlines for under $800?
Cheapflights users have found 18 United Airlines flights for under $800 on the WAS-LON route. Prices on flights to London from Washington, D.C. can vary based on many factors including dates. To look at price based on your preferred dates, click here.
Does United Airlines service alternative airports for WAS-LON?
Those looking to travel from Washington, D.C. to London on United Airlines should know that there are other options for airports to fly into when visiting London. The most popular airport is London Heathrow, but for some, London Gatwick is the better option as it is closer to the end destination or even cheaper to fly into on United Airlines. If you are looking for a closer or different airport to depart from in Washington, D.C., United Airlines also flies out of Baltimore/Washington when traveling to London.
How do most travelers feel about United Airlines?
The average rating from 29 United Airlines reviews by Cheapflights users is 6.8 (out of a maximum rating of 10). If you are considering flying WAS-LON with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to London with United Airlines.

Cheapest United Airlines flights from Washington, D.C. to London

Wed 6/2610:25 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Wed 8/2812:15 pmLHR - IAD

Nonstop8h 05mUnited Airlines

Deal found 5/28$825

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Tue 6/116:30 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Thu 6/208:40 amLHR - IAD

1 stop12h 35mUnited Airlines

Deal found 5/28$843

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Wed 6/125:33 pmIAD - LHR

1 stop11h 37mUnited Airlines

Tue 6/181:45 pmLHR - IAD

1 stop31h 30mUnited Airlines

Deal found 5/27$848

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Direct flights from Washington, D.C. to London on United Airlines

Wed 11/68:25 amIAD - LHR

Nonstop7h 25mUnited Airlines

Tue 11/197:10 amLHR - IAD

Nonstop8h 50mUnited Airlines

Deal found 5/27$588

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Sun 9/810:25 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Wed 9/184:40 pmLHR - IAD

Nonstop8h 15mUnited Airlines

Deal found 5/27$623

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Sat 11/98:25 amIAD - LHR

Nonstop7h 25mUnited Airlines

Wed 11/134:20 pmLHR - IAD

Nonstop8h 55mUnited Airlines

Deal found 5/27$638

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Last minute deals on Cheapflights

Wed 6/56:30 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Mon 6/101:45 pmLHR - IAD

1 stop31h 30mUnited Airlines

Deal found 5/27$1,061

Pick Dates

Fri 6/710:25 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Sun 6/96:50 amLHR - IAD

1 stop12h 25mUnited Airlines

Deal found 5/27$1,064

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Wed 6/512:45 pmIAD - LHR

2 stops12h 45mUnited Airlines

Tue 6/116:50 amLHR - IAD

1 stop11h 40mUnited Airlines

Deal found 5/26$1,073

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One-way United Airlines flights to London from Washington, D.C.

Sun 9/2210:25 pmIAD - LHR

Nonstop7h 15mUnited Airlines

Deal found 5/27$409

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Tue 10/2910:45 amBWI - LHR

2 stops17h 40mUnited Airlines

Deal found 5/27$410

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Tue 10/299:00 amIAD - LHR

2 stops18h 10mUnited Airlines

Deal found 5/28$413

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Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in London by month

LON Temperature	39.2 - 62.6 °F

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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Fly from Washington, D.C. to London on another airline
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Other United Airlines flights from Washington, D.C.
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Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

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Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

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United Airlines flights from Washington, D.C. to San Francisco

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United Airlines flights from Washington, D.C. to Denver

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United Airlines flights from Washington, D.C. to Los Angeles

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See what others are saying about United Airlines

United Airlines

7.4

Good

10,799 reviews

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Recent reviews

8.0

Very good|Mar 2022

Just a normal flight - all was just fine and reasonably comfortable given the physical limitations of flight - arrived safe and on time which are the important things. The only thing that could have been better - that was controllable - was the food - I am always amazed that it can get worse than it was before but United seems to have experts in this area and they should be commended on continuing to make the food worse when it seemed like it as as bad as it could get while using actual food as inputs. I'm guessing we are pretty close to rock bottom by now but United always seems be able to give that extra effort to eliminate that last little bit of remaining quality and taste. I would recommend that United stop having their accountants plan and prepare meals and snacks and let actual chefs, or at least cooks prepare them in the future.

2.0

Poor|Nov 2021

Clear attendant at the Logan airport was awful. Rude and inconsiderate to everyone. Let every clear customer in front of every priority United customer. Usually they switch off groups but we were waiting 30 minutes when we were third from the front because every clear customer was let in front of us.

8.0

Very good|Jan 2022

Everything was great. Even though the flight got delayed 10 minutes we arrived on time

5.9

Fair|Aug 2021

Boarding was too long. The Seats are too thin. The snacks were water and a cookie.

6.0

Okay|Mar 2022

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Cheapflights users flying from Washington, D.C. to London on United Airlines typically fly into London Heathrow and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to London in 2024

Find detailed information about United Airlines flights from Washington, D.C. to London. Explore the options provided by United Airlines to plan your journey from Washington, D.C. to London. Data last updated May 28, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

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Can I get a flight from Washington, D.C. to London on United Airlines for under $800?

Does United Airlines service alternative airports for WAS-LON?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Washington, D.C. to London

Direct flights from Washington, D.C. to London on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to London from Washington, D.C.

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

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.

Fly from Washington, D.C. to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Other United Airlines flights from Washington, D.C.
Browse through other United Airlines flights departing from Washington, D.C.. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Browse through other United Airlines flights departing from Washington, D.C.. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Washington, D.C. and London
Choose from other airlines serving Washington, D.C. and London.

Choose from other airlines serving Washington, D.C. and London.

Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 28, 2024.

See what others are saying about United Airlines

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United Airlines flights from Washington, D.C. to London (WAS - LON)

Cheapflights users flying from Washington, D.C. to London on United Airlines typically fly into London Heathrow and depart from Washington, D.C. Dulles Intl. Select your dates above for pricing.

United Airlines flights from Washington, D.C. to London in 2024

Find detailed information about United Airlines flights from Washington, D.C. to London. Explore the options provided by United Airlines to plan your journey from Washington, D.C. to London. Data last updated May 28, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Washington, D.C. to London on United Airlines for under $800?

Does United Airlines service alternative airports for WAS-LON?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from Washington, D.C. to London

Direct flights from Washington, D.C. to London on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to London from Washington, D.C.

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

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.

Fly from Washington, D.C. to London on another airlineConsider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.

See what others are saying about United Airlines

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Fly from Washington, D.C. to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on May 28, 2024.