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Cheap flights from Pennsylvania to London from $235

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 9/5. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Pennsylvania to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:40 am - 5:20 am
LGA
-
YXU
18h 40m
2 stops
Multiple Airlines Logo
8:40 pm - 9:47 am
YXU
-
LGA
13h 07m
2 stops
$537Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
6:30 am - 5:20 am
LGA
-
YXU
22h 50m
3 stops
Multiple Airlines Logo
8:40 pm - 9:47 am
YXU
-
LGA
13h 07m
2 stops
$540Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
6:30 am - 5:20 am
LGA
-
YXU
22h 50m
3 stops
Multiple Airlines Logo
2:40 pm - 9:47 am
YXU
-
LGA
19h 07m
3 stops
$547Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
10:40 am - 5:20 am
LGA
-
YXU
18h 40m
2 stops
Multiple Airlines Logo
3:30 pm - 7:00 pm
YXU
-
LGA
3h 30m
1 stop
$598Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
1:00 pm - 5:20 am
JFK
-
YXU
16h 20m
2 stops
Multiple Airlines Logo
6:10 am - 4:35 pm
YXU
-
JFK
10h 25m
1 stop
$629Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Air Canada Logo
4:30 pm - 9:40 pm
EWR
-
YXU
5h 10m
1 stop
Air Canada Logo
3:30 pm - 7:05 pm
YXU
-
EWR
3h 35m
1 stop
$702Air Canada
Mon, Aug 24 - Sun, Aug 30
Air Canada Logo
4:45 pm - 9:40 pm
LGA
-
YXU
4h 55m
1 stop
Air Canada Logo
10:05 am - 1:35 pm
YXU
-
LGA
3h 30m
1 stop
$702Air Canada
Mon, Aug 24 - Sun, Aug 30
WestJet Logo
5:30 pm - 4:45 pm
JFK
-
YXU
23h 15m
1 stop
WestJet Logo
6:10 am - 4:35 pm
YXU
-
JFK
10h 25m
1 stop
$716WestJet
Tue, Aug 25 - Fri, Aug 28
WestJet Logo
5:30 pm - 5:20 am
JFK
-
YXU
11h 50m
1 stop
WestJet Logo
5:55 pm - 4:35 pm
YXU
-
JFK
22h 40m
1 stop
$816WestJet
Sat, Sep 5 - Thu, Sep 10
United Airlines Logo
10:50 am - 2:50 pm
PHL
-
YXU
4h 00m
1 stop
United Airlines Logo
5:40 am - 10:11 am
YXU
-
PHL
4h 31m
1 stop
$1,014United Airlines
Mon, Sep 7 - Mon, Sep 14

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WestJet flights from Pennsylvania to London, Ontario

Our best WestJet deals on Pennsylvania to London, Ontario flight tickets
WestJet
Aug 25
JFK5:30 pmNew York John F Kennedy Intl
23h 15m
1 stop
YXU4:45 pmLondon
Aug 28
YXU6:10 amLondon
10h 25m
1 stop
JFK4:35 pmNew York John F Kennedy Intl
$716
WestJet
Sep 5
JFK5:30 pmNew York John F Kennedy Intl
11h 50m
1 stop
YXU5:20 amLondon
Sep 10
YXU5:55 pmLondon
22h 40m
1 stop
JFK4:35 pmNew York John F Kennedy Intl
$816
WestJet
Aug 25
JFK5:30 pmNew York John F Kennedy Intl
23h 15m
1 stop
YXU4:45 pmLondon
Aug 28
YXU6:10 amLondon
10h 25m
1 stop
JFK4:35 pmNew York John F Kennedy Intl
$823

Air Canada flights from Pennsylvania to London, Ontario

Our best Air Canada deals on Pennsylvania to London, Ontario flight tickets
Air Canada
Aug 24
LGA4:45 pmNew York LaGuardia
4h 55m
1 stop
YXU9:40 pmLondon
Aug 30
YXU10:05 amLondon
3h 30m
1 stop
LGA1:35 pmNew York LaGuardia
$702
Air Canada
Sep 7
LGA4:00 pmNew York LaGuardia
5h 40m
1 stop
YXU9:40 pmLondon
Sep 14
YXU5:40 amLondon
5h 16m
1 stop
LGA10:56 amNew York LaGuardia
$716
Air Canada
Sep 7
LGA6:30 amNew York LaGuardia
8h 20m
2 stops
YXU2:50 pmLondon
Sep 14
YXU3:30 pmLondon
3h 31m
1 stop
LGA7:01 pmNew York LaGuardia
$739

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 July 25, 2026.
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

Cheapest round-trip

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Tue 8/25

10:40 am-5:20 am

2 stops18h 40m

London

Fri 8/28

8:40 pm-9:47 am

2 stops13h 07m

$537

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Tue 8/25

6:30 am-5:20 am

3 stops22h 50m

London

Fri 8/28

8:40 pm-9:47 am

2 stops13h 07m

$540

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Tue 8/25

6:30 am-5:20 am

3 stops22h 50m

London

Fri 8/28

2:40 pm-9:47 am

3 stops19h 07m

$547

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Tue 8/25

10:40 am-5:20 am

2 stops18h 40m

London

Fri 8/28

3:30 pm-7:00 pm

1 stop3h 30m

$598

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Tue 8/25

1:00 pm-5:20 am

2 stops16h 20m

London

Fri 8/28

6:10 am-4:35 pm

1 stop10h 25m

$629

NewarkLondon

EWR - YXU

EWRYXU

Newark

Mon 8/24

4:30 pm-9:40 pm

1 stop5h 10m

London

Sun 8/30

3:30 pm-7:05 pm

1 stop3h 35m

$702
Quickest round-trip

New YorkLondon

LGA - YXU

LGAYXU

New York LaGuardia

Mon 8/24

4:45 pm-9:40 pm

1 stop4h 55m

London

Sun 8/30

10:05 am-1:35 pm

1 stop3h 30m

$702

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Tue 8/25

5:30 pm-4:45 pm

1 stop23h 15m

London

Fri 8/28

6:10 am-4:35 pm

1 stop10h 25m

$716

New YorkLondon

JFK - YXU

JFKYXU

New York John F Kennedy Intl

Sat 9/5

5:30 pm-5:20 am

1 stop11h 50m

London

Thu 9/10

5:55 pm-4:35 pm

1 stop22h 40m

$816

PhiladelphiaLondon

PHL - YXU

PHLYXU

Philadelphia

Mon 9/7

10:50 am-2:50 pm

1 stop4h 00m

London

Mon 9/14

5:40 am-10:11 am

1 stop4h 31m

$1,014

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?

Air Canada, WestJet, 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 44% 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

3h 50m

Direct flights

None
The fastest flight from Pennsylvania to London, Ontario takes 3h 50m
There are no direct flights from Pennsylvania to London, Ontario. There are no popular flight routes from Pennsylvania to London, Ontario.
Search flight deals

Frequently asked questions about flying from Pennsylvania to London, Ontario

  • 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 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.

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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