Cheap flights from Philadelphia to the United Kingdom 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 Philadelphia to the United Kingdom departing on 28/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise 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 Philadelphia to the United Kingdom
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
United Airlines flights from Philadelphia to United Kingdom
Our best United Airlines deals on Philadelphia to United Kingdom flight tickets
Aer Lingus flights from Philadelphia to United Kingdom
Our best Aer Lingus deals on Philadelphia to United Kingdom flight tickets
See travel insights to the United Kingdom from
How to get the cheapest flight ticket from Philadelphia to United Kingdom
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 month to fly to United Kingdom?
The cheapest month to fly to United Kingdom from Philadelphia is in February. Flight prices, which tend to average around £497, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from Philadelphia during the month October is also very affordable. Most momondo users find prices during this month for around £518.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from Philadelphia to United Kingdom is on a Tuesday. Travellers who choose to depart for United Kingdom on a Tuesday will often find tickets for as low as £571. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to United Kingdom for around £736.
What is the cheapest time of day to depart on your flight to United Kingdom?
The cheapest time of day to fly to United Kingdom is in the morning when flights can be purchased for as low as £498. Try not to purchase tickets at midday because they tend to be around £739. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Philadelphia to United Kingdom flight route?
Fly from Philadelphia to London Heathrow for the best Philadelphia - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from Philadelphia when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £635 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Philadelphia for as low as £573 on momondo.
What cabin class options are available on Philadelphia to United Kingdom flights?
There are 3 cabin classes available to choose from on Philadelphia to United Kingdom 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 Philadelphia to United Kingdom?
JetBlue, Aer Lingus, and British Airways are the most popular carriers operating from Philadelphia to United Kingdom
Which airlines fly to United Kingdom?
British Airways, United Airlines and Aer Lingus are the top three most popular airlines that fly to United Kingdom from Philadelphia according to our data. British Airways is the first choice among our users, with 50% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 9 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How many flights depart from Philadelphia to United Kingdom on average per day?
As of May 2025, 14 flights take off from Philadelphia and land in United Kingdom each day. The most common flight departure time for this route is 18:00, with 100% of daily flights taking off in the evening.
How many flights depart from Philadelphia to United Kingdom on average per week?
As of May 2025, there are 100 flights per week flying from Philadelphia to United Kingdom. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
Cheap Philadelphia to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Philadelphia to United Kingdom
Best price found | £174 |
|---|---|
Fastest flight time | 6h 45m |
Direct flights | Every day |
Airports in United Kingdom | 5 airports |
When did momondo last update prices for flights from Philadelphia Airport to United Kingdom?
Prices for flights from Philadelphia Airport to United Kingdom are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to United Kingdom?
There are 4 operators available for flights from Philadelphia Airport to United Kingdom as of May 2025.
How old do you have to be to fly from Philadelphia Airport to United Kingdom?
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 Philadelphia Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Philadelphia to United Kingdom?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Philadelphia to United Kingdom is Boeing 787-9 Dreamliner (43.12% of total bookings). The next most popular plane models are Airbus A350-1000 (40.48%), Boeing 787-8 Dreamliner (7.09%), and Boeing 787 Dreamliner (6.23%).
Best airlines flying from Philadelphia to United Kingdom
Compare and see reviews for airlines that fly from Philadelphia to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £436 | Free Cancellation | Rating 7.0 2,701 reviews | |||
| PriceFrom £454 | Free Cancellation | Rating 7.3 2,924 reviews | |||
| PriceFrom £459 | Free Cancellation | Rating 6.6 6,845 reviews | |||
| PriceFrom £494 | Free Cancellation | Rating 7.0 1,076 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Philadelphia to United Kingdom?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Philadelphia.
Can I find flights from Philadelphia to United Kingdom with flexible booking policies on momondo?
Flights from Philadelphia to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Philadelphia to United Kingdom?
Once all potential Philadelphia to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Philadelphia to United Kingdom right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to United Kingdom from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.