Question 1

Why should I use momondo to find a flight deal to Philadelphia?

Accepted Answer

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Philadelphia. Millions of users trust and use momondo every year so you are in good company.

Question 2

Can I find flights to Philadelphia with flexible booking policies on momondo?

Accepted Answer

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

Question 3

How can momondo help me find flights to Philadelphia?

Accepted Answer

momondo provides multiple filters to help you find the best flight to Philadelphia. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

Question 4

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

Accepted Answer

Yes. momondo can track flight prices for Philadelphia and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

Question 5

When is it best to fly to Philadelphia to go sightseeing?

Accepted Answer

When planning your flight to Philadelphia, consider that the months of April, May, and September are typically considered the best times to visit if you are looking to go sightseeing. That is when the weather is most cooperative. Sights like University of Pennsylvania and Philadelphia Museum of Art are very popular tourist attractions.

Question 6

How far in advance should I book a flight to Philadelphia?

Accepted Answer

Most flyers found that booking tickets 16 days in advance of their planned departure date is the best time to get cheap flights to Philadelphia. During this timeframe, flight prices are around £545. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from United Kingdom for as low as £462 on momondo.

Question 7

Is there an alternative airport near Philadelphia?

Accepted Answer

Finding an alternative and possibly cheaper destination airport near Philadelphia is possible. If you are planning a flight to Philadelphia, consider booking flights to Philadelphia Airport (7 mi from Philadelphia city centre), Trenton-Mercer Airport (29 mi from Philadelphia city centre), Greater Wilmington Airport (31 mi from Philadelphia city centre), Atlantic City Airport (46 mi from Philadelphia city centre) or Newark Airport (73 mi from Philadelphia city centre).

Question 8

Is there a cheaper alternative to flying into Philadelphia?

Accepted Answer

With an average price of £170 per person, New York LaGuardia Airport is the cheapest airport to fly into when planning your trip to Philadelphia. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

Question 9

Which airlines fly to Philadelphia?

Accepted Answer

For flights from United Kingdom to Philadelphia, most momondo users will book with popular airlines such as British Airways, Virgin Atlantic, Aer Lingus and Lufthansa. Depending on what airport you fly from, you may have other airlines to choose from.

Question 10

KLM Flights to Philadelphia

Accepted Answer

The most popular airline for flights to Philadelphia on momondo is KLM, which operates 33 flights in this direction every week. Most depart out of Atlanta Hartsfield-Jackson, with the best deal for KLM flights to Philadelphia being £301 (round-trip, Birmingham to Philadelphia, momondo searches within the last 72 hours). In 1,384 KLM reviews, it is rated 7.8 by momondo users.

Question 11

Finnair Flights to Philadelphia

Accepted Answer

Finnair flight deals to Philadelphia start from £439 - this is the best price found recently on momondo, and was a return journey departing from Edinburgh Turnhouse. Over any normal week, Finnair flight prices are typically higher, but vary depending on where you fly from - London Heathrow is the most popular Finnair departure point to Philadelphia so generally has the most availability. Finnair is scored a 7.6/10 in 1,321 reviews.

Question 12

When did momondo last update prices for flights to Philadelphia Airport?

Accepted Answer

Prices for flights to Philadelphia Airport are updated daily.

Question 13

How many operators does momondo search for flights to Philadelphia Airport?

Accepted Answer

The number of operators available for flights to Philadelphia Airport is 15 as of August 2025.

Question 14

How old do you have to be to fly to Philadelphia Airport?

Accepted Answer

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 to Philadelphia Airport.

Question 15

What documentation or ID do you need to fly to Philadelphia Airport?

Accepted Answer

The travel and health documents required for your trip to Philadelphia 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 Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Question 16

How far in advance should I book a flight to Philadelphia?

Accepted Answer

You are more likely to see cheaper flights to Philadelphia from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around £555 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from United Kingdom for as low as £507 on momondo.

Question 17

What is the absolute cheapest flight to Philadelphia?

Accepted Answer

£54 is the cheapest deal found on momondo in the last two weeks for a flight to Philadelphia. This flight is from Washington, D.C. and is 89% cheaper than most flights to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.

Question 18

What is the cheapest time of day to depart on your flight to Philadelphia?

Accepted Answer

The cheapest time of day to fly to Philadelphia is in the afternoon when flights can be purchased for as low as £496. At midday is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £623 per ticket.

Question 19

What is the cheapest day to depart on your flight to Philadelphia?

Accepted Answer

Our data shows that Tuesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £593. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £654.

Question 20

How long does it take to fly to Philadelphia?

Accepted Answer

The flight from United Kingdom to Philadelphia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from London Heathrow (a popular airport in United Kingdom) to New York John F Kennedy Intl (the most popular airport in Philadelphia), then the flight time is 7h 34m on average. If you fly from Manchester (another popular airport in United Kingdom) to New York John F Kennedy Intl, then the average flight time is 7h 30m.

Question 21

What is the cheapest month to fly to Philadelphia?

Accepted Answer

If you aren’t able to travel during the month of February, then book flights to Philadelphia from United Kingdom during September instead. Flights to Philadelphia in September, while not as cheap as those in February, still average around £493.

CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORT	March	16% cheaper	Flying from London Heathrow Airport to Philadelphia costs on average just £468 in March
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORT	July	21% more expensive	It costs about £672 for flights to Philadelphia from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM LONDON HEATHROW AIRPORT	October	226% more users visited	More momondo users searched in flights to Philadelphia from London Heathrow Airport in October than any other month

Best One-Way Price	£225
Best Round-Trip Price	£350
Fastest flight time	14h 29m
Popular in	August

£225 Cheap flights to Philadelphia

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Philadelphia departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel during the month of February, then book flights to Philadelphia from United Kingdom during September instead. Flights to Philadelphia in September, while not as cheap as those in February, still average around £493.

What is the absolute cheapest flight to Philadelphia?

£54 is the cheapest deal found on momondo in the last two weeks for a flight to Philadelphia. This flight is from Washington, D.C. and is 89% cheaper than most flights to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.

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What is the cheapest day to depart on your flight to Philadelphia?

What is the cheapest time of day to depart on your flight to Philadelphia?

The cheapest time of day to fly to Philadelphia is in the afternoon when flights can be purchased for as low as £496. At midday is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £623 per ticket.

How far in advance should I book a flight to Philadelphia?

How long does it take to fly to Philadelphia?

Cheapest flights to Philadelphia

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Frequently asked questions about flying to Philadelphia

When is it best to fly to Philadelphia to go sightseeing?

How far in advance should I book a flight to Philadelphia?

Is there an alternative airport near Philadelphia?

Is there a cheaper alternative to flying into Philadelphia?

When did momondo last update prices for flights to Philadelphia Airport?

How many operators does momondo search for flights to Philadelphia Airport?

How old do you have to be to fly to Philadelphia Airport?

What documentation or ID do you need to fly to Philadelphia Airport?

Travelling to a place near Philadelphia?

Why use momondo?

Why should I use momondo to find a flight deal to Philadelphia?

Can I find flights to Philadelphia with flexible booking policies on momondo?

How can momondo help me find flights to Philadelphia?

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

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