$92 Find Cheap Flights from Philadelphia to Belleville

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 Belleville departing on 6/30. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$276
Typical prices: $633-$461
Frontier
Thu 6/25Sun 6/28
PHL - STL • 1 stop
Cheapest non-stop
$277
Typical prices: $573-$421
American Airlines
Tue 6/30Wed 7/1
PHL - STL • Non-stop
Arrival airport
You can't fly directly to Belleville. It is served by St. Louis (STL), located 26.3 miles from Belleville.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Philadelphia to Belleville (PHL-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Belleville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Belleville

Thu, Jun 25 - Sun, Jun 28
Frontier Logo
8:30 am - 5:30 pm
PHL
-
STL
10h 00m
1 stop
Frontier Logo
6:31 pm - 7:19 am
STL
-
PHL
11h 48m
1 stop
$276Frontier
Tue, Jun 30 - Wed, Jul 1
American Airlines Logo
3:20 pm - 4:58 pm
PHL
-
STL
2h 38mnonstop
American Airlines Logo
11:18 am - 2:39 pm
STL
-
PHL
2h 21mnonstop
$277American Airlines
Wed, Jul 1 - Mon, Jul 6
Frontier Logo
6:30 am - 6:18 pm
PHL
-
STL
12h 48m
2 stops
Frontier Logo
4:57 pm - 7:15 am
STL
-
PHL
13h 18m
1 stop
$278Frontier
Fri, Jun 26 - Mon, Jun 29
Frontier Logo
8:37 pm - 6:53 pm
PHL
-
STL
23h 16m
1 stop
Frontier Logo
4:17 pm - 8:51 am
STL
-
PHL
15h 34m
1 stop
$279Frontier
Wed, Oct 14 - Wed, Oct 21
Frontier Logo
8:44 pm - 7:15 pm
PHL
-
STL
23h 31m
1 stop
Frontier Logo
8:10 pm - 5:36 am
STL
-
PHL
8h 26m
1 stop
$280Frontier
Tue, Jul 14 - Tue, Jul 21
Frontier Logo
4:30 pm - 8:57 am
PHL
-
STL
17h 27m
1 stop
Frontier Logo
8:08 pm - 12:22 pm
STL
-
PHL
15h 14m
2 stops
$281Frontier
Sat, Sep 19 - Mon, Sep 21
Frontier Logo
3:25 pm - 7:39 pm
PHL
-
STL
29h 14m
1 stop
Frontier Logo
8:34 pm - 9:32 am
STL
-
PHL
11h 58m
1 stop
$282Frontier
Wed, Oct 7 - Mon, Oct 12
Frontier Logo
5:57 pm - 9:40 am
PHL
-
STL
16h 43m
2 stops
Frontier Logo
10:35 am - 6:15 pm
STL
-
PHL
6h 40m
1 stop
$283Frontier
Wed, Jun 24 - Sun, Jun 28
Frontier Logo
5:10 pm - 11:49 pm
PHL
-
STL
7h 39m
1 stop
Frontier Logo
7:38 pm - 5:38 am
STL
-
PHL
9h 00m
1 stop
$284Frontier
Thu, Jul 2 - Tue, Jul 14
Frontier Logo
8:37 pm - 8:52 am
PHL
-
STL
13h 15m
2 stops
Frontier Logo
6:34 pm - 12:22 pm
STL
-
PHL
16h 48m
1 stop
$285Frontier
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$92
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Philadelphia to St. Louis

When to book flights from Philadelphia to Belleville

Are your dates flexible? Find out the best times to travel from Philadelphia to Belleville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Philadelphia to Belleville

  • Which airports will I be using when flying from Philadelphia to Belleville?

    When flying out of Philadelphia you’ll be using Philadelphia. Belleville does not have its own airport so you’ll be flying into nearby Lambert-St Louis airport, which is 26.3 mi away.

  • How long does a flight from Philadelphia to Belleville take?

    Direct flights cover the 811 miles separating Philadelphia and Belleville in about 2h 20m.

  • How many flights are there between Philadelphia and Belleville?

    8 direct flights run between Philadelphia and Belleville on a daily basis. On average, there are about 56 departures each week.

  • What’s the cheapest day of the week to fly between Philadelphia and Belleville?

    Consider leaving on a Friday and avoid Thursdays if you are looking for the best rates. For your return to Philadelphia, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Philadelphia to Belleville?

    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 Belleville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belleville 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 Belleville?

    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 Belleville 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 Belleville?

    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 Belleville from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Philadelphia to Belleville?

    In the last 5 days, the cheapest one-way ticket between Philadelphia and Belleville found on KAYAK was with Frontier for $61. Frontier offered a round-trip connection from $144 and American Airlines from $235.

Top tips for finding cheap flights from Philadelphia to Belleville

  • There is no airport in Belleville. Instead, you’ll be flying into St. Louis Lambert Airport when flying between Philadelphia and Belleville.
  • The cheapest flight from Philadelphia to Belleville was found 38 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is August.

Reviews of the top 4 airlines serving Philadelphia to Belleville

 
Need help choosing which airline to fly with from Philadelphia to Belleville? 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.
7.9
SouthwestOverall score based on 4237 reviews
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
8.6Crew
Airline reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

10.0 ExcellentAnonymous, Jun 2026
OKC - LAS
Read more Southwest reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Fine. Nothing to write home about. The plane left on time, and arrived on time.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

Flight was 3 hours delayed. They gave our plan to two other routes. Need to knock that off.

The flight was on time and the landing was very smooth. The crew and flight attendants were all very friendly and professional.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

I appreciate that I finally got the seat I paid extra for this time. Thank you

Half of the TSA checkpoints at PHL are closed. Also, there is no standby for first class passengers. You can only standby for coach. Very dated policy and inconsistent with peers.

It would have been nice if American tried to care.

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

Everything you need to know for your flight from Philadelphia to Belleville

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