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Cheap Flights from Philadelphia International (PHL) to Boise (BOI)

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Flight deals from Philadelphia International Airport to Boise Airport

Looking for a cheap last-minute deal or the best return flight from Philadelphia International to Boise? Find the lowest prices on one-way and return tickets right here.
Boise.£249 per passenger.Departing Tue, 31 Mar, returning Wed, 1 Apr.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Tue, 31 Mar, arriving in Boise.Inbound indirect flight with United, departs from Boise on Wed, 1 Apr, arriving in Philadelphia International.Price includes taxes and charges.From £249, select.
Boise.£255 per passenger.Departing Wed, 25 Mar, returning Sun, 29 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Wed, 25 Mar, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Sun, 29 Mar, arriving in Philadelphia International.Price includes taxes and charges.From £255, select.
Boise.£317 per passenger.Departing Thu, 30 Apr, returning Sun, 3 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Thu, 30 Apr, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sun, 3 May, arriving in Philadelphia International.Price includes taxes and charges.From £317, select.
Boise.£321 per passenger.Departing Wed, 29 Jul, returning Sat, 1 Aug.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Wed, 29 Jul, arriving in Boise.Inbound indirect flight with United, departs from Boise on Sat, 1 Aug, arriving in Philadelphia International.Price includes taxes and charges.From £321, select.
Boise.£322 per passenger.Departing Fri, 21 Aug, returning Sun, 23 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Fri, 21 Aug, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Sun, 23 Aug, arriving in Philadelphia International.Price includes taxes and charges.From £322, select.
Boise.£322 per passenger.Departing Thu, 11 Jun, returning Mon, 15 Jun.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Thu, 11 Jun, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Mon, 15 Jun, arriving in Philadelphia International.Price includes taxes and charges.From £322, select.
Boise.£344 per passenger.Departing Mon, 13 Jul, returning Fri, 17 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Mon, 13 Jul, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Fri, 17 Jul, arriving in Philadelphia International.Price includes taxes and charges.From £344, select.

Find the cheapest month to fly from Philadelphia International to Boise

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Boise flights are currently cheapest in March.
Mar
from £255
Apr
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May
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Jun
from £322
Jul
from £344
Aug
from £322
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Philadelphia International to Boise: Alternative routes

Compare routes from Philadelphia International to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

Boise

3 miles from central Boise
ClosestCheapest
from £249
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Philadelphia to Boise: Flight information

The things to know before you go.
Cheapest flight found£249
Cheapest month to flyMarch

Finding cheap flights from Philadelphia International to Boise: Frequently asked questions

The best price we found for a return flight from Philadelphia International to Boise is £249. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Philadelphia International to Boise. But we found flights with one or more stops from £249.
As of March 2026, there are no flights flying from Philadelphia International to Boise.
The cheapest month to fly from Philadelphia International to Boise is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Boise Airport on Tuesday, 31 March 2026.
No airlines currently offer direct flights between Philadelphia International Airport and Boise Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boise but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boise is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Boise.

Travelling from Philadelphia International Airport (PHL) to Boise Air Terminal (Gowen Field) Airport (BOI): what you need to know

  • Your PHL to BOI flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak time such as August? Major public holidays and other popular periods can mean longer lines at check-in and security. Play it safe and arrive up to four hours before international flights and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport. Just uncheck 'Direct flights only' to break up your trip, or perhaps see a new city along the way. Here's where you can stop between PHL and BOI:

    • Salt Lake City International Airport

    • Denver International Airport

    • Minneapolis-St. Paul International Airport

How to find the cheapest flights from Philadelphia International Airport (PHL) to Boise Air Terminal (Gowen Field) Airport (BOI)

  • Currently, £125 is the lowest price we've seen for a one-way Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport flight. The best price for a return ticket is £249. Keep in mind that fares could change due to availability when booking.

  • To score cheap tickets from PHL to BOI, book in advance. Airlines tend to offer lower prices when flights are first released.

  • If you're willing to be flexible with your travel plans, use the 'Whole month' search tool. It'll give you the cheapest price across every month when looking for a flight from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport.

  • Picking up cheap flights from PHL to BOI couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when there's a better deal.

  • Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Philadelphia International Airport (PHL)

  • PHL's address is Industrial Highway and Island Road.

  • Of all flights leaving Philadelphia International Airport, 78.93% arrive as scheduled at their destination.

  • Philadelphia International Airport is around 12 miles from central Philadelphia. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • The trip when using public transport typically takes 45 minutes.

  • Get your journey off to a leisurely start by staying near PHL. Whether you've booked an early flight from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at Boise Air Terminal (Gowen Field) Airport (BOI)

Getting from Boise Air Terminal (Gowen Field) Airport (BOI) to central Boise

  • You'll find BOI at 3201 Airport Way.

  • From Boise Air Terminal (Gowen Field) Airport, Boise is approximately 11 miles away. It takes around 20 minutes to reach the centre driving.

  • It takes around 1 hour 35 minutes when travelling by public transport.

When to fly to Boise Air Terminal (Gowen Field) Airport (BOI)

  • It's time to plan your travel dates for your flight from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport. July is the busiest month to visit Boise. If you prefer a quieter vibe, go in May.

  • The warmest month in Boise is July, with the temperature ranging between 15ºC (59ºF) and 35ºC (95ºF). Book your flights from Philadelphia International Airport to Boise Air Terminal (Gowen Field) Airport in this month if you enjoy this type of weather.

  • January has average temperatures of between -11ºC (12ºF) and 5ºC (41ºF). Look for cheap tickets from PHL to BOI sometime around then if you'd rather travel in cooler conditions.

Explore more of United States

  • Spokane is just one of the many places in United States waiting to be explored after you've experienced Boise. Around 290 miles away to the north, top sights here include Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • Salt Lake City is another sought-after destination in United States and is around 300 miles south-east of Boise. No journey is complete without a visit to Temple Square, Utah State Capitol and Red Butte Garden.

Plan the rest of your trip from Philadelphia to Boise

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.