Cheap Flights from Philadelphia International to Boise

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Compare Philadelphia International to Boise flight deals

Find the cheapest month or even day of the year to fly to Boise

Book the best Boise fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Philadelphia International to Boise

Looking for a cheap last-minute deal or the best return flight from Philadelphia International Airport to Boise Airport? If you want to travel next month, return fares start from $545. Find the lowest prices on one-way and return tickets right here.

Boise.$545 per passenger.Departing Wed, 14 Oct, returning Mon, 19 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Wed, 14 Oct, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Mon, 19 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $545, select.

Boise.$548 per passenger.Departing Sat, 14 Nov, returning Tue, 17 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Sat, 14 Nov, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Tue, 17 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $548, select.

Boise.$738 per passenger.Departing Wed, 23 Dec, returning Sat, 16 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Wed, 23 Dec, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 16 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $738, select.

Boise.$924 per passenger.Departing Mon, 21 Dec, returning Sun, 27 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 21 Dec, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Sun, 27 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $924, 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 October.

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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

5km from central Boise

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from $545

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Philadelphia to Boise: Flight information

The things to know before you go.

Cheapest flight found	$545
Cheapest month to fly	October

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

How much are return flights from Philadelphia International to Boise?

The best price we found for a return flight from Philadelphia International to Boise is $546. 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.

Which airlines fly direct from Philadelphia International to Boise?

Currently, there are no airlines that fly direct from Philadelphia International to Boise. But we found flights with one or more stops from $545.

How many flights are there a week from Philadelphia International to Boise?

As of September 2026, there are no flights flying from Philadelphia International to Boise.

When is the cheapest time to fly from Philadelphia International to Boise?

The cheapest month to fly from Philadelphia International to Boise is usually October.

Which upcoming date is cheapest to fly from Philadelphia International Airport to Boise Airport on?

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 Wednesday, 14 October 2026.

Can I get a direct flight from Philadelphia International Airport to Boise Airport?

No airlines currently offer direct flights between Philadelphia International Airport and Boise Airport. Most routes have one or more stops.

How can I find the best flight deal to Boise?

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.

When is the best time to book flights to Boise?

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.

Which is the cheapest airline to fly from Philadelphia International Airport to Boise with?

Currently, Delta offers the cheapest flight tickets to Boise.

Flying from Philadelphia International Airport (PHL) to Boise Airport (BOI): what you need to know

Your PHL to BOI flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.
Flying during a peak month like August? School holidays and other popular periods can mean longer queues and delays at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.
If you'd like to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Philadelphia International Airport to Boise Airport. These are the most popular stopovers between PHL and BOI:
- Denver International Airport
- Minneapolis St Paul Airport
- Salt Lake City Airport

Handy information about Philadelphia International Airport (PHL)

You'll find PHL at 8500 Essington Ave.
Of all flights departing from Philadelphia International Airport, 77% land on schedule at their destination.
To reach Philadelphia International Airport from central Philadelphia, it'll take around 20 minutes if you're travelling by car. This depends on traffic though. It's approximately 18 kilometres from the airport to the city centre.
Taking public transport? Expect a trip time of around 30 minutes.
Get your break off to a stress-free start by staying near PHL. Whether you have an early flight from Philadelphia International Airport to Boise Airport or just don't like being rushed, these stays have you covered:

Arriving at Boise Airport (BOI)

Reserve a hotel near BOI if you're taking a late Philadelphia International Airport to Boise Airport flight. Select one of these options and skip the long transfer after landing:
Go where the road takes you with a Boise Airport rental car. Pick up a set of wheels from Budget, Alamo or Avis and discover more of Boise and beyond.
Reserving your vehicle from Boise Airport around one week in advance can help you get the lowest rate.

Getting from Boise Airport (BOI) to central Boise

BOI is located at 3201 Airport Way.
Boise Airport to the centre of Boise has a drive time of around 15 minutes. It's approximately 6 kilometres away.
When travelling by public transport, expect a journey time of roughly 30 minutes.

When to fly to Boise Airport (BOI)

It's time to work out your travel dates for your flight from Philadelphia International Airport to Boise Airport. October is the most popular month to visit Boise. If you want a more laid-back vibe, go in March.
Before locking in your flight from Philadelphia International Airport to Boise Airport, consider the type of weather you enjoy. July is the warmest month in Boise, with temperatures ranging from 15ºC to 35ºC.
January sees average temperatures of between -11ºC and 5ºC. Look for cheap tickets from PHL to BOI sometime around then if you want to travel in cooler conditions.

Explore more of the United States

Boise has plenty going for it, but there are so many other corners of the United States you'll want to see. Around 467 kilometres north of Boise, a visit to Spokane will keep your itinerary packed. Start with leading attractions like Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.
If you're looking to explore another major destination in the United States, head for Salt Lake City, about 483 kilometres south-east of Boise. Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle are key highlights.