Travel with Axel,
get the best price.

Phoenix → Denver

Dec 13, 2026 · return Dec 20, 2026

PHX → DEN1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Sun, Dec 13 – Sun, Dec 20

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

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
6:20 pmPHX
1h 45m
Nonstop
8:05 pmDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

American Airlines
8:56 amPHX
2h
Nonstop
10:56 amDEN
American Airlines
6:59 pmDEN
1h 56m
Nonstop
8:55 pmPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

United Airlines
6:20 amPHX
1h 50m
Nonstop
8:10 amDEN
United Airlines
4:22 pmDEN
2h 1m
Nonstop
6:23 pmPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Frontier Airlines
12:01 pmPHX
1h 47m
Nonstop
1:48 pmDEN
Frontier Airlines
10:29 pmDEN
2h 1m
Nonstop
12:30 am+1PHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
6:10 amPHX
1h 45m
Nonstop
7:55 amDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

American Airlines
10:48 pmPHX
1h 51m
Nonstop
12:39 am+1DEN
American Airlines
6:59 pmDEN
1h 56m
Nonstop
8:55 pmPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

United Airlines
1:00 pmPHX
1h 50m
Nonstop
2:50 pmDEN
United Airlines
4:22 pmDEN
2h 1m
Nonstop
6:23 pmPHX

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Sun, Dec 20

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

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
6:50 amPHX
4h 20m
LAS · 1h 5m
11:10 amDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
1:30 pmPHX
4h 45m
ELP · 1h 40m
6:15 pmDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
8:00 amPHX
4h 15m
ABQ · 1h 40m
12:15 pmDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
10:35 amPHX
6h
TUS · 3h 15m
4:35 pmDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
11:10 amPHX
6h
COS · 3h 15m
5:10 pmDEN
Southwest Airlines
5:00 amDEN
2h
Nonstop
7:00 amPHX

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)
2026-12-13 → 2026-12-20Frontier AirlinesF91912 / F94753$143.752026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN1369 / WN1751$264.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20American AirlinesAA1414 / AA1762$276.002026-10-29T01:56:17Z
2026-12-13 → 2026-12-20United AirlinesUA2383 / UA1254$299.002026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Delta Air LinesDL1431 + DL1586 / DL1553 + DL2525$368.002026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Frontier AirlinesF91376 / F94753$143.752026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN3416 / WN1751$264.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20American AirlinesAA2601 / AA1762$276.002026-10-29T01:56:17Z
2026-12-13 → 2026-12-20United AirlinesUA2418 / UA1254$299.002026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN3442 + WN1241 / WN1751$289.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN4073 + WN1897 / WN1751$289.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN1565 + WN4637 / WN1751$289.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN39 + WN3390 / WN1751$289.502026-10-29T01:56:17Z
2026-12-13 → 2026-12-20Southwest AirlinesWN563 + WN1291 / WN1751$289.502026-10-29T01:56:17Z

2026-12-13 → 2026-12-20 · $143.75

  • Frontier Airlines F91912: PHX 2026-12-13 22:21:00 → DEN 2026-12-14 00:07:00; nonstop; 106 minutes. Local airport times.
  • Frontier Airlines F94753: DEN 2026-12-20 22:29:00 → PHX 2026-12-21 00:30:00; nonstop; 121 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $264.50

  • Southwest Airlines WN1369: PHX 2026-12-13 18:20:00 → DEN 2026-12-13 20:05:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $276.00

  • American Airlines AA1414: PHX 2026-12-13 08:56:00 → DEN 2026-12-13 10:56:00; nonstop; 120 minutes. Local airport times.
  • American Airlines AA1762: DEN 2026-12-20 18:59:00 → PHX 2026-12-20 20:55:00; nonstop; 116 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $299.00

  • United Airlines UA2383: PHX 2026-12-13 06:20:00 → DEN 2026-12-13 08:10:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA1254: DEN 2026-12-20 16:22:00 → PHX 2026-12-20 18:23:00; nonstop; 121 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $368.00

  • Delta Air Lines DL1431 / DL1586: PHX 2026-12-13 14:32:00 → DEN 2026-12-13 20:32:00; 1 stop(s) via SLC; 360 minutes. Local airport times.
    • DL1431: PHX 2026-12-13 14:32:00 → SLC 2026-12-13 16:14:00; layover at SLC: 165 minutes.
    • DL1586: SLC 2026-12-13 18:59:00 → DEN 2026-12-13 20:32:00.
  • Delta Air Lines DL1553 / DL2525: DEN 2026-12-20 12:29:00 → PHX 2026-12-20 17:17:00; 1 stop(s) via SLC; 288 minutes. Local airport times.
    • DL1553: DEN 2026-12-20 12:29:00 → SLC 2026-12-20 14:06:00; layover at SLC: 89 minutes.
    • DL2525: SLC 2026-12-20 15:35:00 → PHX 2026-12-20 17:17:00.

2026-12-13 → 2026-12-20 · $143.75

  • Frontier Airlines F91376: PHX 2026-12-13 12:01:00 → DEN 2026-12-13 13:48:00; nonstop; 107 minutes. Local airport times.
  • Frontier Airlines F94753: DEN 2026-12-20 22:29:00 → PHX 2026-12-21 00:30:00; nonstop; 121 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $264.50

  • Southwest Airlines WN3416: PHX 2026-12-13 06:10:00 → DEN 2026-12-13 07:55:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $276.00

  • American Airlines AA2601: PHX 2026-12-13 22:48:00 → DEN 2026-12-14 00:39:00; nonstop; 111 minutes. Local airport times.
  • American Airlines AA1762: DEN 2026-12-20 18:59:00 → PHX 2026-12-20 20:55:00; nonstop; 116 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $299.00

  • United Airlines UA2418: PHX 2026-12-13 13:00:00 → DEN 2026-12-13 14:50:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA1254: DEN 2026-12-20 16:22:00 → PHX 2026-12-20 18:23:00; nonstop; 121 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $289.50

  • Southwest Airlines WN3442 / WN1241: PHX 2026-12-13 06:50:00 → DEN 2026-12-13 11:10:00; 1 stop(s) via LAS; 260 minutes. Local airport times.
    • WN3442: PHX 2026-12-13 06:50:00 → LAS 2026-12-13 07:05:00; layover at LAS: 65 minutes.
    • WN1241: LAS 2026-12-13 08:10:00 → DEN 2026-12-13 11:10:00.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $289.50

  • Southwest Airlines WN4073 / WN1897: PHX 2026-12-13 13:30:00 → DEN 2026-12-13 18:15:00; 1 stop(s) via ELP; 285 minutes. Local airport times.
    • WN4073: PHX 2026-12-13 13:30:00 → ELP 2026-12-13 14:45:00; layover at ELP: 100 minutes.
    • WN1897: ELP 2026-12-13 16:25:00 → DEN 2026-12-13 18:15:00.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $289.50

  • Southwest Airlines WN1565 / WN4637: PHX 2026-12-13 08:00:00 → DEN 2026-12-13 12:15:00; 1 stop(s) via ABQ; 255 minutes. Local airport times.
    • WN1565: PHX 2026-12-13 08:00:00 → ABQ 2026-12-13 09:10:00; layover at ABQ: 100 minutes.
    • WN4637: ABQ 2026-12-13 10:50:00 → DEN 2026-12-13 12:15:00.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $289.50

  • Southwest Airlines WN39 / WN3390: PHX 2026-12-13 10:35:00 → DEN 2026-12-13 16:35:00; 1 stop(s) via TUS; 360 minutes. Local airport times.
    • WN39: PHX 2026-12-13 10:35:00 → TUS 2026-12-13 11:25:00; layover at TUS: 195 minutes.
    • WN3390: TUS 2026-12-13 14:40:00 → DEN 2026-12-13 16:35:00.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

2026-12-13 → 2026-12-20 · $289.50

  • Southwest Airlines WN563 / WN1291: PHX 2026-12-13 11:10:00 → DEN 2026-12-13 17:10:00; 1 stop(s) via COS; 360 minutes. Local airport times.
    • WN563: PHX 2026-12-13 11:10:00 → COS 2026-12-13 13:00:00; layover at COS: 195 minutes.
    • WN1291: COS 2026-12-13 16:15:00 → DEN 2026-12-13 17:10:00.
  • Southwest Airlines WN1751: DEN 2026-12-20 05:00:00 → PHX 2026-12-20 07:00:00; nonstop; 120 minutes. Local airport times.

More dates for this route