Cheap flights from Philadelphia to London from $198
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 London departing on 9/21. 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 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 Philadelphia to London
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
British Airways flights from Philadelphia to London Gatwick Airport
Our best British Airways deals on Philadelphia to London Gatwick Airport flight tickets
JetBlue flights from Philadelphia to London Gatwick Airport
Our best JetBlue deals on Philadelphia to London Gatwick Airport flight tickets
See travel insights to London from
How to get the cheapest flight ticket from Philadelphia to London Gatwick 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
What is the cheapest month to fly to London Gatwick Airport?
In general, September is the cheapest month to fly from Philadelphia to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $616. If you are unable to visit London Gatwick Airport during the month of September, then departing from Philadelphia during the month March is also very affordable. Most momondo users find prices during this month for around $669.
What is the cheapest day to depart on your flight to London Gatwick Airport?
The cheapest day to depart from Philadelphia to London Gatwick Airport is on a Tuesday when prices can be found for as low as $731. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Wednesday is $1,068.
When to book flights from Philadelphia to London Gatwick Airport
Cheap Philadelphia to London Gatwick Airport (PHL to LGW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Philadelphia to London Gatwick Airport
How far is Philadelphia to London Gatwick by plane?
The straight-line distance from Philadelphia to London Gatwick is 3544.3 mi. Typically, this will take 9h 55m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to London Gatwick Airport?
Prices for flights from Philadelphia Airport to London Gatwick Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to London Gatwick Airport?
The number of operators available for flights from Philadelphia Airport to London Gatwick Airport is 2 as of July 2025.
How old do you have to be to fly from Philadelphia Airport to London Gatwick Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to London Gatwick Airport.
What documentation or ID do you need to fly to London Gatwick Airport?
The required travel and health documents for your London Gatwick Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Gatwick Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Philadelphia to London Gatwick Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Philadelphia to London Gatwick Airport is JetBlue (70% of total bookings). The next most popular airline is British Airways (30%).
Best airlines flying from Philadelphia to London Gatwick Airport
Compare and see reviews for airlines that fly from Philadelphia to London Gatwick Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $560 | Free Cancellation | Rating 6.6 7,103 reviews | |||
| PriceFrom $576 | Free Cancellation | Rating 7.3 2,909 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Philadelphia to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to London. momondo saves you time and could save you money on your trip.
Can I find flights from Philadelphia to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Philadelphia to London flights to just show those with flexible booking policies.
How can momondo help me find flights from Philadelphia to London?
momondo helps you find the best flight between Philadelphia 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 Philadelphia 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 Philadelphia and alert you when they change.