Boston to Phoenix flights
The cheapest round trip we found from Boston to Phoenix is $364 (Dec 17 – 23, 1 stop).
BOS to PHX · Round trip · Economy · Prices per person in USD · Price found (30 minutes ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $536 |
| December 2026 | $364 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 17 – 23 6 nights · leave Thu$364$364 Book
Frontier Airlines 1 stop · 8h 43m -
Nov 21 – 30 9 nights · leave Sat$536$536 Book
Frontier Airlines 1 stop · 8h 25m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Phoenix
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Plan the rest of your trip
Phoenix · Dec 17 – 23Partner links: we may earn a commission if you book, at no extra cost to you.
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Flights to Phoenix from other cities
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- Ontario $114 −56%
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Boston to Phoenix: questions
How much does a flight from Boston to Phoenix cost?
The cheapest round trip we have found right now is $364, leaving December 17 and returning December 23. Prices are per person, economy, in USD.
Which airports do Boston to Phoenix flights use?
Boston airports include Logan International (BOS) and Pease Air Force Base (PSM). Phoenix airports include Phoenix Sky Harbor International (PHX), Phoenix-Mesa Gateway (AZA) and Scottsdale (SCF). The prices on this page cover every airport in both cities (BOS and PHX are the city codes).
About this route
We track round-trip economy fares from Boston (United States) to Phoenix (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $364, departing December 17 and returning December 23. The cheapest month to fly in our data is December, from $364. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.