Travel with Axel,
get the best price.

Phoenix → Denver

Dec 15, 2026 · return Dec 25, 2026

PHX → DEN1 adulteconomyRound trip

13 flight options · 5 airlines

Nonstop flights

Tue, Dec 15 – Fri, Dec 25

Frontier Airlines
10:21 pmPHX
1h 46m
Nonstop
12:07 am+1DEN
Frontier Airlines
10:29 pmDEN
2h 1m
Nonstop
12:30 am+1PHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
8:30 amPHX
1h 55m
Nonstop
10:25 amDEN
Southwest Airlines
4:45 pmDEN
1h 50m
Nonstop
6:35 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

American Airlines
9:35 amPHX
1h 59m
Nonstop
11:34 amDEN
American Airlines
6:21 amDEN
2h 9m
Nonstop
8:30 amPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

United Airlines
12:51 pmPHX
1h 50m
Nonstop
2:41 pmDEN
United Airlines
1:25 pmDEN
2h 1m
Nonstop
3:26 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Frontier Airlines
10:24 amPHX
1h 50m
Nonstop
12:14 pmDEN
Frontier Airlines
10:29 pmDEN
2h 1m
Nonstop
12:30 am+1PHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

American Airlines
5:35 pmPHX
1h 54m
Nonstop
7:29 pmDEN
American Airlines
6:21 amDEN
2h 9m
Nonstop
8:30 amPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

United Airlines
6:20 amPHX
1h 50m
Nonstop
8:10 amDEN
United Airlines
1:25 pmDEN
2h 1m
Nonstop
3:26 pmPHX

Round-trip total · 1 adult · Taxes included

One-stop flights

Tue, Dec 15 – Fri, Dec 25

Delta Air Lines
2:32 pmPHX
6h
SLC · 2h 45m
8:32 pmDEN
Delta Air Lines
12:29 pmDEN
4h 48m
SLC · 1h 29m
5:17 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
8:35 amPHX
1h 45m
Nonstop
10:20 amDEN
Southwest Airlines
4:15 pmDEN
5h 40m
ABQ · 2h 55m
9:55 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
8:00 amPHX
4h 15m
ABQ · 1h 40m
12:15 pmDEN
Southwest Airlines
4:15 pmDEN
5h 40m
ABQ · 2h 55m
9:55 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
11:10 amPHX
6h
COS · 3h 15m
5:10 pmDEN
Southwest Airlines
4:15 pmDEN
5h 40m
ABQ · 2h 55m
9:55 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
10:35 amPHX
6h
TUS · 3h 15m
4:35 pmDEN
Southwest Airlines
4:15 pmDEN
5h 40m
ABQ · 2h 55m
9:55 pmPHX

Round-trip total · 1 adult · Taxes included

Tue, Dec 15 – Fri, Dec 25

Southwest Airlines
6:50 amPHX
4h 20m
LAS · 1h 5m
11:10 amDEN
Southwest Airlines
4:15 pmDEN
5h 40m
ABQ · 2h 55m
9:55 pmPHX

Round-trip total · 1 adult · Taxes included

Make this trip yours

PHX ⇄ DEN

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, Frontier 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

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-15 → 2026-12-25Frontier AirlinesF91912 / F94753$143.752026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN3417 / WN1759$264.502026-10-29T01:56:17Z
2026-12-15 → 2026-12-25American AirlinesAA1414 / AA1404$276.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25United AirlinesUA2819 / UA631$299.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Delta Air LinesDL1431 + DL1586 / DL1553 + DL2525$368.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Frontier AirlinesF91376 / F94753$143.752026-10-29T01:56:17Z
2026-12-15 → 2026-12-25American AirlinesAA1762 / AA1404$276.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25United AirlinesUA2383 / UA631$299.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN3417 / WN2342 + WN1472$297.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN1565 + WN4637 / WN2342 + WN1472$322.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN563 + WN1291 / WN2342 + WN1472$322.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN39 + WN3390 / WN2342 + WN1472$322.002026-10-29T01:56:17Z
2026-12-15 → 2026-12-25Southwest AirlinesWN3442 + WN1241 / WN2342 + WN1472$322.002026-10-29T01:56:17Z

2026-12-15 → 2026-12-25 · $143.75

  • Frontier Airlines F91912: PHX 2026-12-15 22:21:00 → DEN 2026-12-16 00:07:00; nonstop; 106 minutes. Local airport times.
  • Frontier Airlines F94753: DEN 2026-12-25 22:29:00 → PHX 2026-12-26 00:30:00; nonstop; 121 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $264.50

  • Southwest Airlines WN3417: PHX 2026-12-15 08:30:00 → DEN 2026-12-15 10:25:00; nonstop; 115 minutes. Local airport times.
  • Southwest Airlines WN1759: DEN 2026-12-25 16:45:00 → PHX 2026-12-25 18:35:00; nonstop; 110 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $276.00

  • American Airlines AA1414: PHX 2026-12-15 09:35:00 → DEN 2026-12-15 11:34:00; nonstop; 119 minutes. Local airport times.
  • American Airlines AA1404: DEN 2026-12-25 06:21:00 → PHX 2026-12-25 08:30:00; nonstop; 129 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $299.00

  • United Airlines UA2819: PHX 2026-12-15 12:51:00 → DEN 2026-12-15 14:41:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA631: DEN 2026-12-25 13:25:00 → PHX 2026-12-25 15:26:00; nonstop; 121 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $368.00

  • Delta Air Lines DL1431 / DL1586: PHX 2026-12-15 14:32:00 → DEN 2026-12-15 20:32:00; 1 stop(s) via SLC; 360 minutes. Local airport times.
    • DL1431: PHX 2026-12-15 14:32:00 → SLC 2026-12-15 16:14:00; layover at SLC: 165 minutes.
    • DL1586: SLC 2026-12-15 18:59:00 → DEN 2026-12-15 20:32:00.
  • Delta Air Lines DL1553 / DL2525: DEN 2026-12-25 12:29:00 → PHX 2026-12-25 17:17:00; 1 stop(s) via SLC; 288 minutes. Local airport times.
    • DL1553: DEN 2026-12-25 12:29:00 → SLC 2026-12-25 14:06:00; layover at SLC: 89 minutes.
    • DL2525: SLC 2026-12-25 15:35:00 → PHX 2026-12-25 17:17:00.

2026-12-15 → 2026-12-25 · $143.75

  • Frontier Airlines F91376: PHX 2026-12-15 10:24:00 → DEN 2026-12-15 12:14:00; nonstop; 110 minutes. Local airport times.
  • Frontier Airlines F94753: DEN 2026-12-25 22:29:00 → PHX 2026-12-26 00:30:00; nonstop; 121 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $276.00

  • American Airlines AA1762: PHX 2026-12-15 17:35:00 → DEN 2026-12-15 19:29:00; nonstop; 114 minutes. Local airport times.
  • American Airlines AA1404: DEN 2026-12-25 06:21:00 → PHX 2026-12-25 08:30:00; nonstop; 129 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $299.00

  • United Airlines UA2383: PHX 2026-12-15 06:20:00 → DEN 2026-12-15 08:10:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA631: DEN 2026-12-25 13:25:00 → PHX 2026-12-25 15:26:00; nonstop; 121 minutes. Local airport times.

2026-12-15 → 2026-12-25 · $297.00

  • Southwest Airlines WN3417: PHX 2026-12-15 08:35:00 → DEN 2026-12-15 10:20:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN2342 / WN1472: DEN 2026-12-25 16:15:00 → PHX 2026-12-25 21:55:00; 1 stop(s) via ABQ; 340 minutes. Local airport times.
    • WN2342: DEN 2026-12-25 16:15:00 → ABQ 2026-12-25 17:35:00; layover at ABQ: 175 minutes.
    • WN1472: ABQ 2026-12-25 20:30:00 → PHX 2026-12-25 21:55:00.

2026-12-15 → 2026-12-25 · $322.00

  • Southwest Airlines WN1565 / WN4637: PHX 2026-12-15 08:00:00 → DEN 2026-12-15 12:15:00; 1 stop(s) via ABQ; 255 minutes. Local airport times.
    • WN1565: PHX 2026-12-15 08:00:00 → ABQ 2026-12-15 09:10:00; layover at ABQ: 100 minutes.
    • WN4637: ABQ 2026-12-15 10:50:00 → DEN 2026-12-15 12:15:00.
  • Southwest Airlines WN2342 / WN1472: DEN 2026-12-25 16:15:00 → PHX 2026-12-25 21:55:00; 1 stop(s) via ABQ; 340 minutes. Local airport times.
    • WN2342: DEN 2026-12-25 16:15:00 → ABQ 2026-12-25 17:35:00; layover at ABQ: 175 minutes.
    • WN1472: ABQ 2026-12-25 20:30:00 → PHX 2026-12-25 21:55:00.

2026-12-15 → 2026-12-25 · $322.00

  • Southwest Airlines WN563 / WN1291: PHX 2026-12-15 11:10:00 → DEN 2026-12-15 17:10:00; 1 stop(s) via COS; 360 minutes. Local airport times.
    • WN563: PHX 2026-12-15 11:10:00 → COS 2026-12-15 13:00:00; layover at COS: 195 minutes.
    • WN1291: COS 2026-12-15 16:15:00 → DEN 2026-12-15 17:10:00.
  • Southwest Airlines WN2342 / WN1472: DEN 2026-12-25 16:15:00 → PHX 2026-12-25 21:55:00; 1 stop(s) via ABQ; 340 minutes. Local airport times.
    • WN2342: DEN 2026-12-25 16:15:00 → ABQ 2026-12-25 17:35:00; layover at ABQ: 175 minutes.
    • WN1472: ABQ 2026-12-25 20:30:00 → PHX 2026-12-25 21:55:00.

2026-12-15 → 2026-12-25 · $322.00

  • Southwest Airlines WN39 / WN3390: PHX 2026-12-15 10:35:00 → DEN 2026-12-15 16:35:00; 1 stop(s) via TUS; 360 minutes. Local airport times.
    • WN39: PHX 2026-12-15 10:35:00 → TUS 2026-12-15 11:25:00; layover at TUS: 195 minutes.
    • WN3390: TUS 2026-12-15 14:40:00 → DEN 2026-12-15 16:35:00.
  • Southwest Airlines WN2342 / WN1472: DEN 2026-12-25 16:15:00 → PHX 2026-12-25 21:55:00; 1 stop(s) via ABQ; 340 minutes. Local airport times.
    • WN2342: DEN 2026-12-25 16:15:00 → ABQ 2026-12-25 17:35:00; layover at ABQ: 175 minutes.
    • WN1472: ABQ 2026-12-25 20:30:00 → PHX 2026-12-25 21:55:00.

2026-12-15 → 2026-12-25 · $322.00

  • Southwest Airlines WN3442 / WN1241: PHX 2026-12-15 06:50:00 → DEN 2026-12-15 11:10:00; 1 stop(s) via LAS; 260 minutes. Local airport times.
    • WN3442: PHX 2026-12-15 06:50:00 → LAS 2026-12-15 07:05:00; layover at LAS: 65 minutes.
    • WN1241: LAS 2026-12-15 08:10:00 → DEN 2026-12-15 11:10:00.
  • Southwest Airlines WN2342 / WN1472: DEN 2026-12-25 16:15:00 → PHX 2026-12-25 21:55:00; 1 stop(s) via ABQ; 340 minutes. Local airport times.
    • WN2342: DEN 2026-12-25 16:15:00 → ABQ 2026-12-25 17:35:00; layover at ABQ: 175 minutes.
    • WN1472: ABQ 2026-12-25 20:30:00 → PHX 2026-12-25 21:55:00.

More dates for this route