Route guide · 736 miles
Cheap Flights from Phoenix to Boise
PHX → BOI · Nonstop 2h 0m · Live round-trip fares
Flying from Phoenix to Boise doesn't have to drain your wallet. This 736-mile hop takes about 2h 0m nonstop, and fares swing a lot depending on the week you pick. Travelers who book roughly 2–4 weeks out usually come out ahead — set a free alert and let the deals come to you.
Live fares for PHX → BOI are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
2h 0m
Nonstop, typical
Distance
736 mi
PHX → BOI
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
2
American Airlines, Southwest Airlines
Nonstop flights from Phoenix to Boise
The fastest way between the two cities is the nonstop: about 2h 0m for the 736-mile run from PHX to BOI. Those flights are flown by American Airlines, Southwest Airlines. Prices behave best when you book 2–4 weeks out.
Booking insights: Phoenix → Boise
- Distance: 736 miles · nonstop flight time: 2h 0m.
- Cheapest upcoming week in the live data starts around Oct 22, with fares from $76.
- Fares tend to bottom out when you book about 2–4 weeks ahead — earlier than that rarely helps, later usually hurts.
- If your dates flex by a day or two, shifting to a midweek departure is the easiest saving there is.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
Cheapest month · Phoenix → Boise
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$76
Cheapest: Fri, Oct 23 — $76 · Priciest: Oct 26 — $117
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Phoenix to Boise: what you need to know
The flight
The nonstop from PHX to BOI runs about 2h 0m over 736 miles. It's a comfortable mid-range flight: long enough that seat choice matters a little, short enough that paying up for extras rarely does.
Airlines on this route
American Airlines and Southwest Airlines fly this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Phoenix (PHX)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Phoenix airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Boise (BOI)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Boise airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Boise to Phoenix fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 736 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 2h 0m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
Phoenix to Boise flight FAQs
How long is the flight from PHX to BOI?
Plan on about 2h 0m in the air for a nonstop from Phoenix to Boise — the route runs roughly 736 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Phoenix to Boise?
American Airlines, Southwest Airlines typically operate nonstop flights from PHX to BOI. Nonstops are usually cheapest when booked 2–4 weeks ahead of departure.
What is the cheapest month to fly from Phoenix to Boise?
Fares from Phoenix to Boise tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from PHX to BOI?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 2–4 weeks booking window is where the value sits.
What is a good round-trip deal from Phoenix to Boise?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Phoenix to Boise?
You'll mainly see American Airlines, Southwest Airlines on Phoenix to Boise. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to Phoenix airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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