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Cheap flights from Pennsylvania to London from $160

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to London departing on 1/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Pennsylvania to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:59 am - 6:34 am
LGA
-
YXU
21h 35m2 stops
Multiple Airlines Logo
8:10 pm - 11:50 pm
YXU
-
LGA
27h 40m2 stops
$476Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
6:00 am - 6:34 am
LGA
-
YXU
24h 34m3 stops
Multiple Airlines Logo
8:10 pm - 11:50 pm
YXU
-
LGA
27h 40m2 stops
$488Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
6:00 am - 6:35 am
PHL
-
YXU
24h 35m3 stops
Multiple Airlines Logo
8:10 pm - 8:47 am
YXU
-
PHL
36h 37m3 stops
$488Multiple Airlines
Tue, Feb 3 - Thu, Feb 5
Multiple Airlines Logo
7:55 am - 6:34 am
EWR
-
YXU
22h 39m3 stops
Multiple Airlines Logo
8:10 pm - 11:30 pm
YXU
-
EWR
27h 20m3 stops
$497Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Air Canada Logo
4:30 pm - 9:21 pm
IAD
-
YXU
4h 51m1 stop
Air Canada Logo
9:50 am - 3:46 pm
YXU
-
IAD
5h 56m1 stop
$594Air Canada
Thu, Jan 22 - Mon, Jan 26
Air Canada Logo
12:55 pm - 9:20 pm
DCA
-
YXU
8h 25m2 stops
Air Canada Logo
5:10 am - 8:55 am
YXU
-
DCA
3h 45m1 stop
$599Air Canada
Sun, Jan 25 - Wed, Jan 28
Air Canada Logo
4:30 pm - 9:21 pm
IAD
-
YXU
4h 51m1 stop
Air Canada Logo
9:50 am - 8:54 pm
YXU
-
IAD
11h 04m2 stops
$603Air Canada
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
12:35 pm - 5:05 pm
IAD
-
YXU
4h 30m1 stop
United Airlines Logo
9:25 am - 3:49 pm
YXU
-
IAD
6h 24m1 stop
$680United Airlines
Thu, Jan 29 - Thu, Feb 5
United Airlines Logo
6:00 am - 5:05 pm
DCA
-
YXU
11h 05m2 stops
United Airlines Logo
5:10 am - 8:55 am
YXU
-
DCA
3h 45m1 stop
$690United Airlines
Thu, Jan 29 - Thu, Feb 5
United Airlines Logo
1:05 pm - 9:21 pm
IAD
-
YXU
8h 16m2 stops
United Airlines Logo
9:25 am - 3:49 pm
YXU
-
IAD
6h 24m1 stop
$690United Airlines
Thu, Jan 29 - Thu, Feb 5

United Airlines flights from Pennsylvania to London, Ontario

Our best United Airlines deals on Pennsylvania to London, Ontario flight tickets
United Airlines
Jan 29
IAD12:35 pmWashington, D.C. Dulles Intl
4h 30m
1 stop
YXU5:05 pmLondon
Feb 5
YXU9:25 amLondon
6h 24m
1 stop
IAD3:49 pmWashington, D.C. Dulles Intl
$680
Find similar
United Airlines
Jan 29
DCA6:00 amWashington, D.C. Reagan-National
11h 05m
2 stops
YXU5:05 pmLondon
Feb 5
YXU5:10 amLondon
3h 45m
1 stop
DCA8:55 amWashington, D.C. Reagan-National
$690
Find similar
United Airlines
Jan 29
DCA7:30 amWashington, D.C. Reagan-National
9h 35m
2 stops
YXU5:05 pmLondon
Feb 5
YXU9:25 amLondon
8h 06m
2 stops
DCA5:31 pmWashington, D.C. Reagan-National
$705
Find similar

Air Canada flights from Pennsylvania to London, Ontario

Our best Air Canada deals on Pennsylvania to London, Ontario flight tickets
Air Canada
Jan 22
IAD4:30 pmWashington, D.C. Dulles Intl
4h 51m
1 stop
YXU9:21 pmLondon
Jan 26
YXU9:50 amLondon
5h 56m
1 stop
IAD3:46 pmWashington, D.C. Dulles Intl
$594
Find similar
Air Canada
Jan 25
DCA12:55 pmWashington, D.C. Reagan-National
8h 25m
2 stops
YXU9:20 pmLondon
Jan 28
YXU5:10 amLondon
3h 45m
1 stop
DCA8:55 amWashington, D.C. Reagan-National
$599
Find similar
Air Canada
Jan 22
IAD4:30 pmWashington, D.C. Dulles Intl
4h 51m
1 stop
YXU9:21 pmLondon
Jan 26
YXU9:50 amLondon
11h 04m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$603
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania to London, Ontario 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, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Pennsylvania to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Wed 1/28

8:59 am-6:34 am

2 stops21h 35m

London

Wed 2/4

8:10 pm-11:50 pm

2 stops27h 40m

$476

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Wed 1/28

6:00 am-6:34 am

3 stops24h 34m

London

Wed 2/4

8:10 pm-11:50 pm

2 stops27h 40m

$488

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Tue 2/3

6:00 am-6:35 am

3 stops24h 35m

London

Thu 2/5

8:10 pm-8:47 am

3 stops36h 37m

$488

NewarkLondon

EWR - YXU

EWRYXU

Newark

Wed 1/28

7:55 am-6:34 am

3 stops22h 39m

London

Wed 2/4

8:10 pm-11:30 pm

3 stops27h 20m

$497

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 1/22

4:30 pm-9:21 pm

1 stop4h 51m

London

Mon 1/26

9:50 am-3:46 pm

1 stop5h 56m

$594

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Sun 1/25

12:55 pm-9:20 pm

2 stops8h 25m

London

Wed 1/28

5:10 am-8:55 am

1 stop3h 45m

$599

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 1/22

4:30 pm-9:21 pm

1 stop4h 51m

London

Mon 1/26

9:50 am-8:54 pm

2 stops11h 04m

$603

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 1/29

12:35 pm-5:05 pm

1 stop4h 30m

London

Thu 2/5

9:25 am-3:49 pm

1 stop6h 24m

$680

Washington, D.C.London

DCA - YXU

DCAYXU

Washington, D.C. Reagan-National

Thu 1/29

6:00 am-5:05 pm

2 stops11h 05m

London

Thu 2/5

5:10 am-8:55 am

1 stop3h 45m

$690

Washington, D.C.London

IAD - YXU

IADYXU

Washington, D.C. Dulles Intl

Thu 1/29

1:05 pm-9:21 pm

2 stops8h 16m

London

Thu 2/5

9:25 am-3:49 pm

1 stop6h 24m

$690

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Pennsylvania to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Pennsylvania to London?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Pennsylvania to London

What airlines fly to London, Ontario?

Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to London, Ontario from Pennsylvania according to our data. Air Canada is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 4 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Pennsylvania to London, Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to London, Ontario

Fastest flight time

4h 00m

Direct flights

None
The fastest flight from Pennsylvania to London, Ontario takes 4h 00m
There are no direct flights from Pennsylvania to London, Ontario. There are no popular flight routes from Pennsylvania to London, Ontario.
Search flight deals

  • When did momondo last update prices for flights from Pennsylvania to London Airport?

    Prices for flights from Pennsylvania to London Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Pennsylvania to London Airport?

  • How old do you have to be to fly from Pennsylvania to London Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Pennsylvania to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The travel and health documents required for your trip to London Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Pennsylvania to London, Ontario

Compare and see reviews for airlines that fly from Pennsylvania to London, Ontario with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $549Free CancellationRating
7.1
10,531 reviews
Search Air Canada flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to London?

Finding the right flight to London from Pennsylvania is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Pennsylvania to London with flexible booking policies on momondo?

Yes. All flights to London from Pennsylvania on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Pennsylvania to London?

momondo helps you find the best flight between Pennsylvania and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Pennsylvania to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Pennsylvania and alert you when they change.

An easier way to manage your London, Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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