In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

If weather is an important factor for your trip to London, Ontario, 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 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest time of day to fly from DCA to YXU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to London, Ontario as you normally would.

What airport do you fly into for flights to London from Washington, D.C. Reagan-National?

Located just 5.3 mi from the city center, London is the airport most travelers will use when flying to London from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to London (YXU) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.

Can I find deals for flights from Reagan-National to London that include hotel bookings?

Yes. In addition to deals on Reagan-National to London flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to London?

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

Can I find deals for business class flights from Reagan-National to London?

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

$341+ Flights from Washington, D.C. Reagan-National Airport to London, ON

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Cheap flight deals from Reagan-National to London

Round-trip from	$775 (Air Canada)
One-way from	$341 (Air Canada)

From Washington, D.C. Reagan-National to London

Search Deals

One-way flight from Washington, D.C. Reagan-National to London

Search Deals

Find flight deals from Reagan-National to London

Cheapest flights from Reagan-National to London
Explore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Fri 8/111:00 amDCA - YXU

1 stop6h 07mAir Canada

Mon 8/45:45 pmYXU - DCA

1 stop4h 42mAir Canada

Deal found 7/10

$775

Sat 8/2311:00 amDCA - YXU

1 stop4h 02mUnited Airlines

Sat 8/309:55 amYXU - DCA

2 stops11h 08mUnited Airlines

Deal found 7/9

$889

Fri 7/2511:10 amDCA - YXU

2 stops10h 17mMultiple Airlines

Sun 7/276:15 amYXU - DCA

2 stops5h 48mMultiple Airlines

Deal found 7/9

$915

Fri 8/16:00 amDCA - YXU

3 stops23h 14mWestJet

Mon 8/46:00 amYXU - DCA

3 stops34h 11mWestJet

Deal found 7/10

$1,543

Best flights from Reagan-National to London
Discover carefully curated flight deals from Reagan-National to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2025.

Fri 8/111:00 amDCA - YXU

1 stop6h 07mAir Canada

Mon 8/45:45 pmYXU - DCA

1 stop4h 42mAir Canada

Deal found 7/10

$775

Sat 8/2311:00 amDCA - YXU

1 stop4h 02mUnited Airlines

Sat 8/309:55 amYXU - DCA

2 stops11h 08mUnited Airlines

Deal found 7/9

$889

Fri 7/2511:10 amDCA - YXU

2 stops10h 17mMultiple Airlines

Sun 7/276:15 amYXU - DCA

2 stops5h 48mMultiple Airlines

Deal found 7/9

$915

Fri 8/16:00 amDCA - YXU

3 stops23h 14mWestJet

Mon 8/46:00 amYXU - DCA

3 stops34h 11mWestJet

Deal found 7/10

$1,543

Last-minute flights from Reagan-National to London
Discover last-minute flight deals from Reagan-National to London. Data last updated July 11, 2025 and is based on user searches.

Fri 7/2511:10 amDCA - YXU

2 stops10h 17mMultiple Airlines

Sun 7/276:15 amYXU - DCA

2 stops5h 48mMultiple Airlines

Deal found 7/9

$915

Fri 8/111:00 amDCA - YXU

1 stop6h 07mAir Canada

Mon 8/45:45 pmYXU - DCA

1 stop4h 42mAir Canada

Deal found 7/10

$775

Fri 8/16:00 amDCA - YXU

3 stops23h 14mWestJet

Mon 8/46:00 amYXU - DCA

3 stops34h 11mWestJet

Deal found 7/10

$1,543

Sat 8/2311:00 amDCA - YXU

1 stop4h 02mUnited Airlines

Sat 8/309:55 amYXU - DCA

2 stops11h 08mUnited Airlines

Deal found 7/9

$889

One-way flights from Reagan-National to London
Search for one-way flight options from Reagan-National to London. Find affordable one-way fares based on user searches. Data last updated July 11, 2025.

Mon 8/2511:00 amDCA - YXU

1 stop4h 02mAir Canada

Deal found 7/11

$341

Mon 8/258:30 amDCA - YXU

3 stops12h 57mUnited Airlines

Deal found 7/11

$679

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 8/1

11:00 am-5:07 pm

1 stop6h 07m

London

Mon 8/4

5:45 pm-10:27 pm

1 stop4h 42m

$775

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sat 8/23

11:00 am-3:02 pm

1 stop4h 02m

London

Sat 8/30

9:55 am-9:03 pm

2 stops11h 08m

$889

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 7/25

11:10 am-9:27 pm

2 stops10h 17m

London

Sun 7/27

6:15 am-12:03 pm

2 stops5h 48m

$915

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Fri 8/1

6:00 am-5:14 am

3 stops23h 14m

London

Mon 8/4

6:00 am-4:11 pm

3 stops34h 11m

$1,543

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 8/25

11:00 am-3:02 pm

1 stop4h 02m

$341

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Mon 8/25

8:30 am-9:27 pm

3 stops12h 57m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/11

Best time to book a flight from Reagan-National to London

Have a flexible travel schedule? Discover the best time to fly to London from Reagan-National with our price prediction graph.

Estimated round-trip 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.

Reviews of airlines servicing London

See what other customers who have flown with United Airlines, WestJet, and Air Canada from Washington, D.C. Reagan-National Airport to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,846 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,846 reviews

United Airlines

7.4

Good

8,846 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

WestJet

7.2

Good

2,924 reviews

United Airlines

7.4

Good

8,846 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.1

Good

9,692 reviews

United Airlines

7.4

Good

8,846 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly into for flights to London from Washington, D.C. Reagan-National?
Located just 5.3 mi from the city center, London is the airport most travelers will use when flying to London from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to London (YXU) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.
Can I find deals for flights from Reagan-National to London that include hotel bookings?
Yes. In addition to deals on Reagan-National to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to London.
Can I find deals for business class flights from Reagan-National to London?
Yes. Cheapflights offers flight deals from Reagan-National to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$341+ Cheap flights from Reagan-National (DCA) to London, ON (YXU)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to London

Round-trip from

One-way from

Find flight deals from Reagan-National to London

Cheapest flights from Reagan-National to LondonExplore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Explore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London that are best for you.

Best time to book a flight from Reagan-National to London

Have a flexible travel schedule? Discover the best time to fly to London from Reagan-National with our price prediction graph.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated July 11, 2025.

See what other customers who have flown with United Airlines, WestJet, and Air Canada from Washington, D.C. Reagan-National Airport to London have to say. You can also see how each airline compares 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 Reagan-National to London. 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 London from Washington, D.C. Reagan-National?

Can I find deals for flights from Reagan-National to London that include hotel bookings?

How can I find direct flights from Reagan-National to London?

Can I find deals for business class flights from Reagan-National to London?

Traveling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for Reagan-National to London

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Cheapest flights from Reagan-National to London
Explore the most affordable flight options available from Reagan-National to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2025.