Travel with Axel,
get the best price.

Phoenix → Denver

Dec 23, 2026 · return Dec 26, 2026

PHX → DEN1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Wed, Dec 23 – Sat, Dec 26

Frontier Airlines
10:09 amPHX
1h 50m
Nonstop
11:59 amDEN
Frontier Airlines
1:15 pmDEN
1h 58m
Nonstop
3:13 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
5:15 pmPHX
1h 50m
Nonstop
7:05 pmDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

American Airlines
8:40 pmPHX
1h 51m
Nonstop
10:31 pmDEN
American Airlines
12:06 pmDEN
1h 57m
Nonstop
2:03 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

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

Wed, Dec 23 – Sat, Dec 26

Frontier Airlines
10:09 pmPHX
1h 50m
Nonstop
11:59 pmDEN
Frontier Airlines
1:15 pmDEN
1h 58m
Nonstop
3:13 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
7:35 amPHX
1h 50m
Nonstop
9:25 amDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

American Airlines
1:16 pmPHX
1h 58m
Nonstop
3:14 pmDEN
American Airlines
12:06 pmDEN
1h 57m
Nonstop
2:03 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

United Airlines
12:51 pmPHX
1h 50m
Nonstop
2:41 pmDEN
United Airlines
4:22 pmDEN
2h 1m
Nonstop
6:23 pmPHX

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 23 – Sat, Dec 26

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

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
11:10 amPHX
6h
COS · 3h 15m
5:10 pmDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
1:30 pmPHX
4h 45m
ELP · 1h 40m
6:15 pmDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
8:00 amPHX
4h 15m
ABQ · 1h 40m
12:15 pmDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
10:35 amPHX
6h
TUS · 3h 15m
4:35 pmDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 pmPHX

Round-trip total · 1 adult · Taxes included

Wed, Dec 23 – Sat, Dec 26

Southwest Airlines
6:50 amPHX
4h 20m
LAS · 1h 5m
11:10 amDEN
Southwest Airlines
8:05 pmDEN
1h 55m
Nonstop
10:00 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 routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 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)
2026-12-23 → 2026-12-26Frontier AirlinesF91748 / F91885$162.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN284 / WN392$299.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26American AirlinesAA2601 / AA2447$312.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26United AirlinesUA2383 / UA1254$338.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Delta Air LinesDL1431 + DL1586 / DL1553 + DL2525$416.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Frontier AirlinesF91912 / F91885$162.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN668 / WN392$299.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26American AirlinesAA3376 / AA2447$312.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26United AirlinesUA2819 / UA1254$338.002026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN563 + WN1291 / WN392$331.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN4073 + WN1897 / WN392$331.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN1565 + WN4637 / WN392$331.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN39 + WN3390 / WN392$331.502026-10-29T01:56:17Z
2026-12-23 → 2026-12-26Southwest AirlinesWN3442 + WN1241 / WN392$331.502026-10-29T01:56:17Z

2026-12-23 → 2026-12-26 · $162.50

  • Frontier Airlines F91748: PHX 2026-12-23 10:09:00 → DEN 2026-12-23 11:59:00; nonstop; 110 minutes. Local airport times.
  • Frontier Airlines F91885: DEN 2026-12-26 13:15:00 → PHX 2026-12-26 15:13:00; nonstop; 118 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $299.00

  • Southwest Airlines WN284: PHX 2026-12-23 17:15:00 → DEN 2026-12-23 19:05:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $312.00

  • American Airlines AA2601: PHX 2026-12-23 20:40:00 → DEN 2026-12-23 22:31:00; nonstop; 111 minutes. Local airport times.
  • American Airlines AA2447: DEN 2026-12-26 12:06:00 → PHX 2026-12-26 14:03:00; nonstop; 117 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $338.00

  • United Airlines UA2383: PHX 2026-12-23 06:20:00 → DEN 2026-12-23 08:10:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA1254: DEN 2026-12-26 16:22:00 → PHX 2026-12-26 18:23:00; nonstop; 121 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $416.00

  • Delta Air Lines DL1431 / DL1586: PHX 2026-12-23 14:32:00 → DEN 2026-12-23 20:32:00; 1 stop(s) via SLC; 360 minutes. Local airport times.
    • DL1431: PHX 2026-12-23 14:32:00 → SLC 2026-12-23 16:14:00; layover at SLC: 165 minutes.
    • DL1586: SLC 2026-12-23 18:59:00 → DEN 2026-12-23 20:32:00.
  • Delta Air Lines DL1553 / DL2525: DEN 2026-12-26 12:29:00 → PHX 2026-12-26 17:17:00; 1 stop(s) via SLC; 288 minutes. Local airport times.
    • DL1553: DEN 2026-12-26 12:29:00 → SLC 2026-12-26 14:06:00; layover at SLC: 89 minutes.
    • DL2525: SLC 2026-12-26 15:35:00 → PHX 2026-12-26 17:17:00.

2026-12-23 → 2026-12-26 · $162.50

  • Frontier Airlines F91912: PHX 2026-12-23 22:09:00 → DEN 2026-12-23 23:59:00; nonstop; 110 minutes. Local airport times.
  • Frontier Airlines F91885: DEN 2026-12-26 13:15:00 → PHX 2026-12-26 15:13:00; nonstop; 118 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $299.00

  • Southwest Airlines WN668: PHX 2026-12-23 07:35:00 → DEN 2026-12-23 09:25:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $312.00

  • American Airlines AA3376: PHX 2026-12-23 13:16:00 → DEN 2026-12-23 15:14:00; nonstop; 118 minutes. Local airport times.
  • American Airlines AA2447: DEN 2026-12-26 12:06:00 → PHX 2026-12-26 14:03:00; nonstop; 117 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $338.00

  • United Airlines UA2819: PHX 2026-12-23 12:51:00 → DEN 2026-12-23 14:41:00; nonstop; 110 minutes. Local airport times.
  • United Airlines UA1254: DEN 2026-12-26 16:22:00 → PHX 2026-12-26 18:23:00; nonstop; 121 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $331.50

  • Southwest Airlines WN563 / WN1291: PHX 2026-12-23 11:10:00 → DEN 2026-12-23 17:10:00; 1 stop(s) via COS; 360 minutes. Local airport times.
    • WN563: PHX 2026-12-23 11:10:00 → COS 2026-12-23 13:00:00; layover at COS: 195 minutes.
    • WN1291: COS 2026-12-23 16:15:00 → DEN 2026-12-23 17:10:00.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $331.50

  • Southwest Airlines WN4073 / WN1897: PHX 2026-12-23 13:30:00 → DEN 2026-12-23 18:15:00; 1 stop(s) via ELP; 285 minutes. Local airport times.
    • WN4073: PHX 2026-12-23 13:30:00 → ELP 2026-12-23 14:45:00; layover at ELP: 100 minutes.
    • WN1897: ELP 2026-12-23 16:25:00 → DEN 2026-12-23 18:15:00.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $331.50

  • Southwest Airlines WN1565 / WN4637: PHX 2026-12-23 08:00:00 → DEN 2026-12-23 12:15:00; 1 stop(s) via ABQ; 255 minutes. Local airport times.
    • WN1565: PHX 2026-12-23 08:00:00 → ABQ 2026-12-23 09:10:00; layover at ABQ: 100 minutes.
    • WN4637: ABQ 2026-12-23 10:50:00 → DEN 2026-12-23 12:15:00.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $331.50

  • Southwest Airlines WN39 / WN3390: PHX 2026-12-23 10:35:00 → DEN 2026-12-23 16:35:00; 1 stop(s) via TUS; 360 minutes. Local airport times.
    • WN39: PHX 2026-12-23 10:35:00 → TUS 2026-12-23 11:25:00; layover at TUS: 195 minutes.
    • WN3390: TUS 2026-12-23 14:40:00 → DEN 2026-12-23 16:35:00.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

2026-12-23 → 2026-12-26 · $331.50

  • Southwest Airlines WN3442 / WN1241: PHX 2026-12-23 06:50:00 → DEN 2026-12-23 11:10:00; 1 stop(s) via LAS; 260 minutes. Local airport times.
    • WN3442: PHX 2026-12-23 06:50:00 → LAS 2026-12-23 07:05:00; layover at LAS: 65 minutes.
    • WN1241: LAS 2026-12-23 08:10:00 → DEN 2026-12-23 11:10:00.
  • Southwest Airlines WN392: DEN 2026-12-26 20:05:00 → PHX 2026-12-26 22:00:00; nonstop; 115 minutes. Local airport times.

More dates for this route