Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Philadelphia to the United States from $24

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to the United States departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/20
Thu 6/27

Search hundreds of travel sites at once for deals on flights to the United States

In the last 7 days travelers have searched 42,596,105 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best United States Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
New York1 stop$116
Los Angeles
Los Angeles1 stop$115
Orlando
Orlandononstop$44
Las Vegas
Las Vegas1 stop$113
Miami
Miaminonstop$40
San Francisco
San Francisco1 stop$269
Chicago
Chicagononstop$58
Boston
Bostonnonstop$48
Washington, D.C.
Baltimore1 stop$127
Denver
Denver1 stop$89
Seattle
Seattle1 stop$179
Fort Lauderdale
Fort Lauderdalenonstop$40
Atlanta
Atlantanonstop$40
Dallas
Dallas1 stop$69
Tampa
Tampanonstop$62
Houston
Houstonnonstop$46
Honolulu
Honolulu1 stop$486
San Diego
San Diego1 stop$168

Good to know

Low season

January

High season

August

Cheapest flight

$24
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Philadelphia to Miami

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Philadelphia to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to the United States with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to the United States from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Philadelphia to the following destinations at these prices or less: Atlanta $77 one-way - $120 round-trip; Orlando $71 one-way - $124 round-trip; Miami $75 one-way - $186 round-trip
  • Morning departure is around 6% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Philadelphia to the United States

 
Need help choosing which airline to fly with from Philadelphia to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10595 reviews
7.9Comfort
7.4Food
8.2Boarding
8.0Entertainment
8.6Crew
Airline reviews

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

8.0 Excellentrghinftl, May 2024FLL - BOS
Read more about Delta reviews

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

flight delayed so missed connection and this had to rebook for next day

Flight departed PHL one hour late due to late arrival of aircraft. On board services were okay. First class menu does not offer any new items; same desserts (cheese & crackers or Mango sorbet). At least there were no credit card promotions during the flight.

After sitting on plane for 7+ hours, flight was canceled. And to makes matters worse, my suitcase is in baggage hell!

Terrible Ticketing and Check in process. I learned that AA unilaterally cancelled my premium seating from PHL to CLT and from CLT to JAN. They did, however, refund my money, but my seating was subsequently severely downgraded. They didn’t have a seat for my unless I paid for it! Not cool! Consequently, Check-in took 45 min. AA is usually great, but this was my worst experience with AA ever. Appalling they they arbitrarily cancel my seats threatening loss of flight if I didn’t pay for a seat!!!! -John

It was the worst ever, i will be filing a lawsuit to get a refund. Our flight was delayed 4 hours so we would miss our connecting flight, we were not rebooked to our destination the same day, we were not offered any options to get home on the same day despite being clear that we absolutely cannot get stranded at night due to family, we were forced to book our own flights on a different airline to get home, and spririt is refusing a refund because our flight wasn't cancelled, only delayed. oh yeah, and they lost our luggage on the first part of the trip and you cannot get a hold of customer service when anything goes wrong, on hold for 30+ minutes. and their app breaks so you can't use that either.

This recognisable no-frills airline gets me from point-A to point-B. I was able to get to Chicago without stress. The checked baggage collection and reclaim could be improved.

The crew was the best and very accommodating I know you don't offer any complimentary items but water and coffee will not break the bank !!

My flight was cancelled!!! I had to spend 200.00 on another flight!!

The whole day was a nightmare. Flight extremely late. Boarding was a mess of a nightmare.

When we landed, they kept us on the plane for almost 25 minutes. Could do better.

worst trip ever Spirit lost our Baggs which were never put on the plane in Atlanta. 24 hours ago they are telling me now that the bags are still missing.

Never been on this flight as i had missed it due to delayed connecting flight

Horrible. Delays, no customer support and fake promises and everything. i am suffering to help as due to connecting flight getting missed no support on ground and customer support window is closed and we are sitting o ground without anything

Missed our departing flight due to poor baggage drop staff. At the airport with 2 & 1/2 hours to spare and waited in bag check in until 15 minutes prior to gates closing before baggage staff asked us to move to the front of the line. We weren’t the only passengers that missed the flight. Poor organizational operations by Spirit staff. Otherwise , the return trip was fine.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Check in online was easy. Seats aren’t very comfortable

Fecal matter in seat back pocket. Presumably from a kids diaper.

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Well I mean u get what u pay for so 🤷‍♂️

Over an hour delay in departure but I was notified beforehand. Another delay on tarmac upon arrival at LGA. We ended up departing the plane almost 2 hours later than expected

I fly Frontier because it’s affordable. I understand that the seats are tight and not the most comfortable…but that’s part of it. The problem with this flight was that there was a group of travelers directly behind me at the back of the plane who were ridiculously loud and obnoxious the entire flight. I’m pretty sure they were drunk and I could periodically smell an odd odor that I believe was one of them using a smokeless vape pen. The stewards had to remind them to keep quiet during the pre-flight instruction, but that was it. They never said another thing to them for the rest of the flight. It was a miserable.

I checked a bag because it was $5 less than carry on. They managed to lose my bag on a 2.5 hr direct flight! Frontier has no airport staff at baggage claim to help. As soon as I got home around 11 pm I tried to use their online system to file the claim for lost bag - system wouldn't take the # on my baggage claim ticket - said it was not the correct number. Also said that I had not checked a bag, which wasn't true - even my online boarding pass showed that I had checked a bag. Wasted about an hour on that process with no luck. Tried again in the morning - same thing. So tried online chat with Frontier bot - waited 35-40" twice to be connected to a baggage agent and it never happened. Eventually drove to PDX after work and waited 2 hrs for the Frontier ticket agents to arrive prior to the next Frontier flight out of PDX and FINALLY got some help from one of them, to take me to lost luggage area where I was able to retrive my bag. Probably took 4-5 hrs. of my time and endless frustration to get my bag. This was my first -- and LAST -- experience flying Frontier Airlines. Check-in was also extremely difficult and time consuming. The flight itself (and staff) were fine but everything else about the experience was a total disaster! The fact that Frontier literally has NO WAY to connect to a human voice for customer service (in this case for lost luggage) is the WORST!!!!!

Frontier is a crappy airline nothing about it is honest

Book cheap flights from Philadelphia to the United States

Recent round-trip flight deals

6/5Wed
nonstopSpirit Airlines
3h 01mPHL-MIA
6/5Wed
nonstopSpirit Airlines
2h 49mMIA-PHL
$40
6/4Tue
nonstopSpirit Airlines
2h 51mPHL-FLL
6/5Wed
nonstopSpirit Airlines
2h 43mFLL-PHL
$40
6/1Sat
nonstopFrontier
1h 27mPHL-BOS
6/8Sat
nonstopFrontier
1h 34mBOS-PHL
$48
6/5Wed
nonstopFrontier
1h 28mPHL-BOS
6/8Sat
nonstopFrontier
1h 34mBOS-PHL
$52
6/3Mon
nonstopUnited Airlines
4h 05mPHL-DEN
6/3Mon
nonstopUnited Airlines
3h 40mDEN-PHL
$149
5/31Fri
nonstopAmerican Airlines
1h 20mPHL-BOS
6/2Sun
nonstopAmerican Airlines
1h 33mBOS-PHL
$163
6/15Sat
1 stopDelta
5h 26mPHL-ORD
6/25Tue
1 stopDelta
5h 04mORD-PHL
$176
5/31Fri
nonstopUnited Airlines
4h 05mPHL-DEN
6/3Mon
nonstopUnited Airlines
3h 40mDEN-PHL
$176
6/7Fri
nonstopDelta
1h 24mPHL-BOS
6/9Sun
nonstopDelta
1h 38mBOS-PHL
$177
7/12Fri
nonstopAmerican Airlines
2h 29mPHL-ORD
7/14Sun
nonstopAmerican Airlines
1h 57mORD-PHL
$181

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/18Wed
nonstopSpirit Airlines
2h 51mPHL-MIA
$24
6/3Mon
nonstopSpirit Airlines
2h 51mPHL-FLL
$24
6/5Wed
nonstopFrontier
1h 28mPHL-BOS
$24
5/29Wed
nonstopFrontier
3h 02mPHL-MIA
$25
8/17Sat
nonstopAmerican Airlines
2h 26mPHL-ORD
$66
5/27Mon
1 stopDelta
4h 20mPHL-ORD
$87
8/24Sat
1 stopDelta
3h 55mPHL-ORD
$88
6/23Sun
nonstopAmerican Airlines
2h 23mPHL-ORD
$91
8/22Thu
1 stopUnited Airlines
4h 16mPHL-ORD
$95
5/27Mon
nonstopUnited Airlines
2h 24mPHL-ORD
$99

Search by stops

Search by airline

Search by price

Last minute flights from Philadelphia to the United States

Last minute flight, train and bus deals

5/26Sun
nonstopSpirit Airlines
2h 37mPHL-MCO
5/31Fri
nonstopSpirit Airlines
2h 34mMCO-PHL
$82
5/26Sun
nonstop
2h 51mPHL-MIA
5/29Wed
nonstop
3h 03mMIA-PHL
$85
5/22Wed
nonstopFrontier
2h 55mPHL-FLL
5/29Wed
nonstopFrontier
2h 54mFLL-PHL
$91
5/26Sun
nonstopFrontier
1h 29mPHL-BOS
5/28Tue
nonstopFrontier
1h 39mBOS-PHL
$107
5/25Sat
nonstopAmerican Airlines
2h 24mPHL-ORD
6/1Sat
nonstopAmerican Airlines
2h 04mORD-PHL
$201
5/25Sat
multi-stopDelta
5h 03mPHL-ORD
5/28Tue
multi-stopDelta
7h 09mORD-PHL
$233
5/25Sat
nonstopAmerican Airlines
1h 20mPHL-BOS
5/28Tue
nonstopAmerican Airlines
1h 30mBOS-PHL
$255
5/25Sat
multi-stopUnited Airlines
4h 22mPHL-BOS
5/28Tue
multi-stopUnited Airlines
4h 45mBOS-PHL
$274
5/23Thu
multi-stopDelta
4h 20mPHL-ORD
5/27Mon
multi-stopDelta
6h 51mORD-PHL
$284
5/26Sun
multi-stopUnited Airlines
4h 53mPHL-BOS
5/28Tue
multi-stopUnited Airlines
5h 29mBOS-PHL
$342

Search by stops

Search by airline

Search by price

Philadelphia - United States Flights

Departure:

Philadelphia (PHL)United States

Return flight deals:

United States - Philadelphia

Cabin classes:

$409
$494
$337
$37

Browse destinations:

View more