PHL - BOI

$126 Find Cheap Flights from Philadelphia to Boise

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 Boise departing on 7/13. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Boise, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$279
Typical prices: $378-$498
Delta
Fri 7/3Tue 7/7
PHL - BOI • 1 stop
Cheapest one-way
$126
Typical prices: $248-$389
Frontier
Mon 7/13
PHL - BOI • 1 stop
Top airlines
Cheapest • from $279 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Boise. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $457 (round-trip)
Shortest trip • 6h 40m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Boise (PHL-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Boise 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 Boise

Fri, Jul 3 - Tue, Jul 7
Delta Logo
5:40 am - 10:58 am
PHL
-
BOI
7h 18m
1 stop
Delta Logo
7:28 pm - 5:29 am
BOI
-
PHL
8h 01m
1 stop
$279Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
7:05 am - 3:18 pm
PHL
-
BOI
10h 13m
1 stop
Delta Logo
5:30 am - 2:34 pm
BOI
-
PHL
7h 04m
1 stop
$301Delta
Fri, Jul 10 - Tue, Jul 14
Delta Logo
6:55 pm - 12:05 am
PHL
-
BOI
7h 10m
1 stop
Delta Logo
8:25 am - 5:39 pm
BOI
-
PHL
7h 14m
1 stop
$304Delta
Mon, Jun 29 - Fri, Jul 3
Alaska Airlines Logo
5:46 pm - 11:48 pm
PHL
-
BOI
8h 02m
1 stop
Alaska Airlines Logo
6:13 pm - 6:13 am
BOI
-
PHL
10h 00m
1 stop
$307Alaska Airlines
Wed, Jul 8 - Mon, Jul 13
Delta Logo
7:30 am - 12:14 pm
PHL
-
BOI
6h 44m
1 stop
Delta Logo
7:28 pm - 5:29 am
BOI
-
PHL
8h 01m
1 stop
$309Delta
Fri, Jul 31 - Mon, Aug 17
Delta Logo
5:40 am - 10:57 am
PHL
-
BOI
7h 17m
1 stop
Delta Logo
11:10 pm - 11:01 am
BOI
-
PHL
9h 51m
1 stop
$310Delta
Wed, Jul 15 - Mon, Jul 20
Delta Logo
7:05 am - 3:11 pm
PHL
-
BOI
10h 06m
1 stop
Delta Logo
11:10 pm - 9:31 am
BOI
-
PHL
8h 21m
1 stop
$314Delta
Fri, Jul 31 - Fri, Aug 14
Delta Logo
5:40 am - 10:57 am
PHL
-
BOI
7h 17m
1 stop
Delta Logo
6:45 pm - 6:05 am
BOI
-
PHL
9h 20m
1 stop
$319Delta
Wed, Jul 15 - Mon, Jul 20
American Airlines Logo
9:45 am - 4:50 pm
PHL
-
BOI
9h 05m
1 stop
American Airlines Logo
3:10 pm - 12:59 am
BOI
-
PHL
7h 49m
1 stop
$324American Airlines
Wed, Jul 15 - Mon, Jul 20
Delta Logo
2:32 pm - 9:57 pm
PHL
-
BOI
9h 25m
1 stop
Delta Logo
6:07 pm - 5:29 am
BOI
-
PHL
9h 22m
1 stop
$330Delta
Booking Insights

KAYAK's insights & trends for Philadelphia to Boise flights

Get data-powered insights and trends into flights from Philadelphia to Boise to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Philadelphia to Boise?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Philadelphia to Boise departing in July.

What is the cheapest month to fly from Philadelphia to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Boise is September, where tickets cost $364 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $595 and $592 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to Boise, you should book around 2 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$126
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 30% increase in price.
Flight from Philadelphia to Boise

When to book flights from Philadelphia to Boise

Are your dates flexible? Find out the best times to travel from Philadelphia to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Philadelphia to Boise

  • What is the cheapest flight from Philadelphia to Boise?

    In the last 5 days, the lowest price for a flight from Philadelphia to Boise was $126 for a one-way ticket and $279 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Boise?

    A passport is not required to fly from Philadelphia to Boise.

  • Which aircraft models fly most regularly from Philadelphia to Boise?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Boise?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Philadelphia and Boise, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Philadelphia to Boise, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Boise are Southwest and Delta. With an average price for the route of $556 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $416 and an overall rating of 7.8.

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

    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 Boise.

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

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

    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 Boise with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and BOI can sometimes prove cheaper using this method.

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

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

Reviews of the top 4 airlines serving from Philadelphia to Boise

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Boise? 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 4241 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
8.6Crew
Airline reviews

Over a 3 hour flight. The turbulence was almost imperceptible except for 2 short periods which were not bad and over quickly. The attendants claimed "Safety first" and sat looking at their phones for 3 hours with no drink or snack service. This isn't the first time with Southwest. I thinkit may be there new plan of operation. Oh, and it was June 18, Southwest's Birthday which offered free drinks. NOT.

4.0 OkayJeff, Jun 2026
MCI - FLL
Read more Southwest reviews

Over a 3 hour flight. The turbulence was almost imperceptible except for 2 short periods which were not bad and over quickly. The attendants claimed "Safety first" and sat looking at their phones for 3 hours with no drink or snack service. This isn't the first time with Southwest. I thinkit may be there new plan of operation. Oh, and it was June 18, Southwest's Birthday which offered free drinks. NOT.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

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!

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

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.

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

Information on your arrival and departure airports