Travel with Axel,
get the best price.

Route overview: Boise to Phoenix (PHX) flight deals

Boise → Phoenix

Dec 25, 2026 · return Dec 30, 2026

BOI → PHX1 adulteconomyRound trip

11 flight options · 6 airlines

Nonstop flights

Fri, Dec 25 – Wed, Dec 30

Southwest Airlines
6:10 pmBOI
2h
Nonstop
8:10 pmPHX
Southwest Airlines
9:50 amPHX
2h 15m
Nonstop
12:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Alaska Airlines
7:00 amBOI
2h 22m
Nonstop
9:22 amPHX
Alaska Airlines
9:53 amPHX
2h 16m
Nonstop
12:09 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

American Airlines
1:57 pmBOI
2h 16m
Nonstop
4:13 pmPHX
American Airlines
11:07 amPHX
2h 16m
Nonstop
1:23 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Southwest Airlines
1:00 pmBOI
2h
Nonstop
3:00 pmPHX
Southwest Airlines
9:50 amPHX
2h 15m
Nonstop
12:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

American Airlines
7:39 amBOI
2h 32m
Nonstop
10:11 amPHX
American Airlines
11:07 amPHX
2h 16m
Nonstop
1:23 pmBOI

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Dec 25 – Wed, Dec 30

Frontier Airlines
7:55 pmBOI
4h 38m
LAS · 1h 28m
12:33 am+1PHX
Frontier Airlines
12:45 pmPHX
4h 35m
LAS · 1h 17m
5:20 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

United Airlines
2:48 pmBOI
5h 10m
DEN · 1h 9m
7:58 pmPHX
Southwest Airlines
9:50 amPHX
2h 15m
Nonstop
12:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Delta Air Lines
1:07 pmBOI
4h 10m
SLC · 1h 10m
5:17 pmPHX
Delta Air Lines
11:30 amPHX
4h 49m
LAX · 1h
4:19 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Southwest Airlines
3:30 pmBOI
4h 55m
DEN · 1h 20m
8:25 pmPHX
Southwest Airlines
9:50 amPHX
2h 15m
Nonstop
12:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Southwest Airlines
5:50 amBOI
4h 35m
SAN · 1h
10:25 amPHX
Southwest Airlines
9:50 amPHX
2h 15m
Nonstop
12:05 pmBOI

Round-trip total · 1 adult · Taxes included

Fri, Dec 25 – Wed, Dec 30

Alaska Airlines
6:43 pmBOI
4h 54m
SAN · 1h 8m
11:37 pmPHX
Alaska Airlines
9:53 amPHX
2h 16m
Nonstop
12:09 pmBOI

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOI ⇄ PHX

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeDec 24, 2026 → Dec 29, 2026Dec 26, 2026 → Dec 31, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Boise to Phoenix (PHX) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-25 → 2026-12-30Southwest AirlinesWN1315 / WN4402$354.242026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Alaska AirlinesAS3295 / AS2183$366.542026-10-29T00:51:19Z
2026-12-25 → 2026-12-30American AirlinesAA3591 / AA2341$391.142026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Frontier AirlinesF91934 + F92258 / F93983 + F91933$255.842026-10-29T00:51:19Z
2026-12-25 → 2026-12-30United Airlines / Southwest AirlinesUA2173 + UA479 / WN4402$399.042026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Delta Air LinesDL2095 + DL2525 / DL4119 + DL3701$440.342026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Southwest AirlinesWN770 / WN4402$354.242026-10-29T00:51:19Z
2026-12-25 → 2026-12-30American AirlinesAA3510 / AA2341$391.142026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Southwest AirlinesWN760 + WN262 / WN4402$360.642026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Southwest AirlinesWN4928 + WN250 / WN4402$360.642026-10-29T00:51:19Z
2026-12-25 → 2026-12-30Alaska AirlinesAS2421 + AS2297 / AS2183$392.142026-10-29T00:51:19Z

2026-12-25 → 2026-12-30 · $354.24

  • Southwest Airlines WN1315: BOI 2026-12-25 18:10:00 → PHX 2026-12-25 20:10:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4402: PHX 2026-12-30 09:50:00 → BOI 2026-12-30 12:05:00; nonstop; 135 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $366.54

  • Alaska Airlines AS3295: BOI 2026-12-25 07:00:00 → PHX 2026-12-25 09:22:00; nonstop; 142 minutes. Local airport times.
  • Alaska Airlines AS2183: PHX 2026-12-30 09:53:00 → BOI 2026-12-30 12:09:00; nonstop; 136 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $391.14

  • American Airlines AA3591: BOI 2026-12-25 13:57:00 → PHX 2026-12-25 16:13:00; nonstop; 136 minutes. Local airport times.
  • American Airlines AA2341: PHX 2026-12-30 11:07:00 → BOI 2026-12-30 13:23:00; nonstop; 136 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $255.84

  • Frontier Airlines F91934 / F92258: BOI 2026-12-25 19:55:00 → PHX 2026-12-26 00:33:00; 1 stop(s) via LAS; 278 minutes. Local airport times.
    • F91934: BOI 2026-12-25 19:55:00 → LAS 2026-12-25 20:49:00; layover at LAS: 88 minutes.
    • F92258: LAS 2026-12-25 22:17:00 → PHX 2026-12-26 00:33:00.
  • Frontier Airlines F93983 / F91933: PHX 2026-12-30 12:45:00 → BOI 2026-12-30 17:20:00; 1 stop(s) via LAS; 275 minutes. Local airport times.
    • F93983: PHX 2026-12-30 12:45:00 → LAS 2026-12-30 13:01:00; layover at LAS: 77 minutes.
    • F91933: LAS 2026-12-30 14:18:00 → BOI 2026-12-30 17:20:00.

2026-12-25 → 2026-12-30 · $399.04

  • United Airlines UA2173 / UA479: BOI 2026-12-25 14:48:00 → PHX 2026-12-25 19:58:00; 1 stop(s) via DEN; 310 minutes. Local airport times.
    • UA2173: BOI 2026-12-25 14:48:00 → DEN 2026-12-25 16:45:00; layover at DEN: 69 minutes.
    • UA479: DEN 2026-12-25 17:54:00 → PHX 2026-12-25 19:58:00.
  • Southwest Airlines WN4402: PHX 2026-12-30 09:50:00 → BOI 2026-12-30 12:05:00; nonstop; 135 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $440.34

  • Delta Air Lines DL2095 / DL2525: BOI 2026-12-25 13:07:00 → PHX 2026-12-25 17:17:00; 1 stop(s) via SLC; 250 minutes. Local airport times.
    • DL2095: BOI 2026-12-25 13:07:00 → SLC 2026-12-25 14:25:00; layover at SLC: 70 minutes.
    • DL2525: SLC 2026-12-25 15:35:00 → PHX 2026-12-25 17:17:00.
  • Delta Air Lines DL4119 / DL3701: PHX 2026-12-30 11:30:00 → BOI 2026-12-30 16:19:00; 1 stop(s) via LAX; 289 minutes. Local airport times.
    • DL4119: PHX 2026-12-30 11:30:00 → LAX 2026-12-30 12:10:00; layover at LAX: 60 minutes.
    • DL3701: LAX 2026-12-30 13:10:00 → BOI 2026-12-30 16:19:00.

2026-12-25 → 2026-12-30 · $354.24

  • Southwest Airlines WN770: BOI 2026-12-25 13:00:00 → PHX 2026-12-25 15:00:00; nonstop; 120 minutes. Local airport times.
  • Southwest Airlines WN4402: PHX 2026-12-30 09:50:00 → BOI 2026-12-30 12:05:00; nonstop; 135 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $391.14

  • American Airlines AA3510: BOI 2026-12-25 07:39:00 → PHX 2026-12-25 10:11:00; nonstop; 152 minutes. Local airport times.
  • American Airlines AA2341: PHX 2026-12-30 11:07:00 → BOI 2026-12-30 13:23:00; nonstop; 136 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $360.64

  • Southwest Airlines WN760 / WN262: BOI 2026-12-25 15:30:00 → PHX 2026-12-25 20:25:00; 1 stop(s) via DEN; 295 minutes. Local airport times.
    • WN760: BOI 2026-12-25 15:30:00 → DEN 2026-12-25 17:10:00; layover at DEN: 80 minutes.
    • WN262: DEN 2026-12-25 18:30:00 → PHX 2026-12-25 20:25:00.
  • Southwest Airlines WN4402: PHX 2026-12-30 09:50:00 → BOI 2026-12-30 12:05:00; nonstop; 135 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $360.64

  • Southwest Airlines WN4928 / WN250: BOI 2026-12-25 05:50:00 → PHX 2026-12-25 10:25:00; 1 stop(s) via SAN; 275 minutes. Local airport times.
    • WN4928: BOI 2026-12-25 05:50:00 → SAN 2026-12-25 07:05:00; layover at SAN: 60 minutes.
    • WN250: SAN 2026-12-25 08:05:00 → PHX 2026-12-25 10:25:00.
  • Southwest Airlines WN4402: PHX 2026-12-30 09:50:00 → BOI 2026-12-30 12:05:00; nonstop; 135 minutes. Local airport times.

2026-12-25 → 2026-12-30 · $392.14

  • Alaska Airlines AS2421 / AS2297: BOI 2026-12-25 18:43:00 → PHX 2026-12-25 23:37:00; 1 stop(s) via SAN; 294 minutes. Local airport times.
    • AS2421: BOI 2026-12-25 18:43:00 → SAN 2026-12-25 20:03:00; layover at SAN: 68 minutes.
    • AS2297: SAN 2026-12-25 21:11:00 → PHX 2026-12-25 23:37:00.
  • Alaska Airlines AS2183: PHX 2026-12-30 09:53:00 → BOI 2026-12-30 12:09:00; nonstop; 136 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boise (BOI) to Phoenix (PHX) · Dec 25, 2026 · return Dec 30, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boise to Phoenix (PHX) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.