Cheap flights from Pennsylvania to London Heathrow Airport from $174
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 Heathrow Airport departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
Deals available from 900+ travel sites.
"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Pennsylvania to London
Cheap round-trip flights
These are some of the best round-trip flight deals from Pennsylvania to London that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Pennsylvania to London.
Cheap last minute flights
Planning a quick getaway from Pennsylvania to London? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from Pennsylvania to London
Find recent round-trip train or bus tickets from Pennsylvania to London.
All round-trip flight deals to London
The cheapest plane tickets to London found on KAYAK recently.
United Airlines flights from Pennsylvania to London Heathrow Airport
Our best United Airlines deals on Pennsylvania to London Heathrow Airport flight tickets
United Airlines![United Airlines]()
Feb 7![United Airlines]()
Feb 9
JFK10:05 amNew York John F Kennedy Intl
16h 05m
1 stop
LHR7:10 amLondon Heathrow
LHR6:50 amLondon Heathrow
11h 30m
1 stop
JFK1:20 pmNew York John F Kennedy Intl
United Airlines![United Airlines]()
Jan 24![United Airlines]()
Jan 26
JFK10:05 amNew York John F Kennedy Intl
16h 05m
1 stop
LHR7:10 amLondon Heathrow
LHR6:50 amLondon Heathrow
11h 30m
1 stop
JFK1:20 pmNew York John F Kennedy Intl
SWISS flights from Pennsylvania to London Heathrow Airport
Our best SWISS deals on Pennsylvania to London Heathrow Airport flight tickets
SWISS![SWISS]()
Feb 7![SWISS]()
Feb 9
JFK4:25 pmNew York John F Kennedy Intl
24h 15m
1 stop
LHR9:40 pmLondon Heathrow
LHR7:30 pmLondon Heathrow
46h 35m
2 stops
JFK1:05 pmNew York John F Kennedy Intl
SWISS![SWISS]()
Feb 7![SWISS]()
Feb 9
JFK4:25 pmNew York John F Kennedy Intl
24h 15m
1 stop
LHR9:40 pmLondon Heathrow
LHR7:30 pmLondon Heathrow
46h 35m
2 stops
JFK1:05 pmNew York John F Kennedy Intl
See travel insights to London from
How to get the cheapest flight ticket from Pennsylvania to London Heathrow Airport
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
Prices
Airlines
Other information
What is the cheapest month to fly to London Heathrow Airport?
The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Pennsylvania, with most prices found around $722. If you’re not able to fly to London Heathrow Airport in January, then October is your next best option. Flight prices from Pennsylvania to London Heathrow Airport during October average around $725.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $811. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $942.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Pennsylvania to London Heathrow Airport at noon for as low as $802. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $870.
What is the cheapest Pennsylvania to London Heathrow flight route?
Fly from Philadelphia to London Heathrow for the best Pennsylvania - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
We recommend purchasing flights from Pennsylvania to London Heathrow Airport 56 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to London Heathrow Airport for $864. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $678.
What cabin class options are available on Pennsylvania to London Heathrow flights?
There are 4 cabin classes available to choose from on Pennsylvania to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Pennsylvania to London Heathrow?
Air Canada, Virgin Atlantic, and JetBlue are the most popular carriers operating from Pennsylvania to London Heathrow
What airlines fly to London Heathrow Airport?
British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Pennsylvania according to our data. British Airways is the first choice among our users, with 39% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 12 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Pennsylvania to London Heathrow Airport on average per day?
The number of flights available between Pennsylvania and London Heathrow Airport is 172 per day as of January 2025. The most frequent departure time is 9:00PM, with 100% of daily flights leaving in the evening.
How many flights depart from Pennsylvania to London Heathrow Airport on average per week?
The number of flights available between Pennsylvania and London Heathrow Airport is 1,205 per week as of January 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.
Cheap Pennsylvania to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to London Heathrow Airport
When did momondo last update prices for flights from Pennsylvania to London Heathrow Airport?
Prices for flights from Pennsylvania to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Pennsylvania to London Heathrow Airport?
The number of operators available for flights from Pennsylvania to London Heathrow Airport is 22 as of January 2025.
How old do you have to be to fly from Pennsylvania to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Pennsylvania to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Pennsylvania to London Heathrow Airport is Boeing 787-9 Dreamliner, representing 38.25% of all bookings. The subsequent popular models are Airbus A350-1000 at 29.12%, Boeing 787-8 Dreamliner at 17.16%, and Boeing 777 at 9.05%.
Best airlines flying from Pennsylvania to London Heathrow Airport
Compare and see reviews for airlines that fly from Pennsylvania to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $463 | Free Cancellation | Rating 7.5 662 reviews | |||
| PriceFrom $525 | Free Cancellation | Rating 6.7 7,078 reviews | |||
| PriceFrom $529 | Free Cancellation | Rating 7.1 498 reviews | |||
| PriceFrom $529 | Free Cancellation | Rating 7.0 8,526 reviews | |||
| PriceFrom $550 | Free Cancellation | Rating 7.4 3,191 reviews | |||
| PriceFrom $575 | Free Cancellation | Rating 7.4 8,944 reviews | |||
| PriceFrom $594 | Free Cancellation | Rating 8.0 8,501 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 7.6 1,284 reviews | |||
| PriceFrom $607 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $612 | Free Cancellation | Rating 7.0 2,633 reviews |
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?
All flight searches from Pennsylvania to London on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Pennsylvania to London?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pennsylvania to London.
I’m not ready to book a flight from Pennsylvania to London right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Pennsylvania to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.
Get notified when prices go down
Daily price changes in your inbox - only with Price Alerts.
From?
To?
Email me momondo's favorite deals
By creating a price alert you accept our terms of use and privacy policy.
Find better results for your trip to London
Popular cities in the United Kingdom
Popular flights according to clicks in the last 7 days on momondo
Flights to London Gatwick Airportfrom $324
Flights to London City Airportfrom $474
Flights to London Stansted Airportfrom $317
Flights to London Luton Airportfrom $316
Flights to Glasgow Intl Airportfrom $383
Flights to Belfast Intl Airportfrom $471
Flights to Belfast City Airportfrom $528
Flights to London Southend Airportfrom $535