Travel with Axel,
get the best price.

Cleveland → Denver

Dec 21, 2026 · return Jan 4, 2027

CLE → DEN1 adulteconomyRound trip

12 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Mon, Jan 4

Frontier Airlines
8:12 pmCLE
3h 24m
Nonstop
9:36 pmDEN
Frontier Airlines
11:10 amDEN
2h 58m
Nonstop
4:08 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
5:25 pmCLE
3h 20m
Nonstop
6:45 pmDEN
Southwest Airlines
10:40 amDEN
2h 40m
Nonstop
3:20 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
8:30 amCLE
3h 30m
Nonstop
10:00 amDEN
United Airlines
9:45 amDEN
2h 54m
Nonstop
2:39 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Frontier Airlines
4:50 pmCLE
3h 33m
Nonstop
6:23 pmDEN
Southwest Airlines
10:40 amDEN
2h 40m
Nonstop
3:20 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
6:45 pmCLE
3h 20m
Nonstop
8:05 pmDEN
Southwest Airlines
10:40 amDEN
2h 40m
Nonstop
3:20 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
4:51 pmCLE
3h 30m
Nonstop
6:21 pmDEN
United Airlines
9:45 amDEN
2h 54m
Nonstop
2:39 pmCLE

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Jan 4

American Airlines
6:00 amCLE
7h 13m
PHL · 1h 7m
11:13 amDEN
American Airlines
2:35 pmDEN
5h 22m
ORD · 1h 6m
9:57 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
4:35 pmCLE
5h 44m
MSP · 1h 18m
8:19 pmDEN
Delta Air Lines
10:39 amDEN
6h 1m
DTW · 2h 20m
6:40 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
8:45 amCLE
5h 45m
MDW · 1h 40m
12:30 pmDEN
Southwest Airlines
10:40 amDEN
2h 40m
Nonstop
3:20 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Southwest Airlines
4:05 pmCLE
6h 50m
DAL · 1h 45m
8:55 pmDEN
Southwest Airlines
10:40 amDEN
2h 40m
Nonstop
3:20 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
6:00 amCLE
6h 26m
ORD · 2h 2m
10:26 amDEN
United Airlines
9:45 amDEN
2h 54m
Nonstop
2:39 pmCLE

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
10:45 amCLE
6h 29m
DTW · 2h 15m
3:14 pmDEN
Delta Air Lines
10:39 amDEN
6h 1m
DTW · 2h 20m
6:40 pmCLE

Round-trip total · 1 adult · Taxes included

Make this trip yours

CLE ⇄ 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)
2026-12-21 → 2027-01-04Frontier AirlinesF94639 / F94638$192.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN757 / WN1540$360.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04United AirlinesUA690 / UA619$408.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04American AirlinesAA5163 + AA1313 / AA1277 + AA4336$384.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Delta Air LinesDL1520 + DL2931 / DL1113 + DL4954$408.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Frontier Airlines / Southwest AirlinesF94639 / WN1540$262.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN1806 / WN1540$360.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04United AirlinesUA498 / UA619$408.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN1218 + WN120 / WN1540$346.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Southwest AirlinesWN4818 + WN200 / WN1540$346.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04United AirlinesUA1219 + UA2495 / UA619$387.002026-10-29T00:56:43Z
2026-12-21 → 2027-01-04Delta Air LinesDL4713 + DL1648 / DL1113 + DL4954$408.002026-10-29T00:56:43Z

2026-12-21 → 2027-01-04 · $192.00

  • Frontier Airlines F94639: CLE 2026-12-21 20:12:00 → DEN 2026-12-21 21:36:00; nonstop; 204 minutes. Local airport times.
  • Frontier Airlines F94638: DEN 2027-01-04 11:10:00 → CLE 2027-01-04 16:08:00; nonstop; 178 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $360.00

  • Southwest Airlines WN757: CLE 2026-12-21 17:25:00 → DEN 2026-12-21 18:45:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN1540: DEN 2027-01-04 10:40:00 → CLE 2027-01-04 15:20:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $408.00

  • United Airlines UA690: CLE 2026-12-21 08:30:00 → DEN 2026-12-21 10:00:00; nonstop; 210 minutes. Local airport times.
  • United Airlines UA619: DEN 2027-01-04 09:45:00 → CLE 2027-01-04 14:39:00; nonstop; 174 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $384.00

  • American Airlines AA5163 / AA1313: CLE 2026-12-21 06:00:00 → DEN 2026-12-21 11:13:00; 1 stop(s) via PHL; 433 minutes. Local airport times.
    • AA5163: CLE 2026-12-21 06:00:00 → PHL 2026-12-21 07:35:00; layover at PHL: 67 minutes.
    • AA1313: PHL 2026-12-21 08:42:00 → DEN 2026-12-21 11:13:00.
  • American Airlines AA1277 / AA4336: DEN 2027-01-04 14:35:00 → CLE 2027-01-04 21:57:00; 1 stop(s) via ORD; 322 minutes. Local airport times.
    • AA1277: DEN 2027-01-04 14:35:00 → ORD 2027-01-04 18:14:00; layover at ORD: 66 minutes.
    • AA4336: ORD 2027-01-04 19:20:00 → CLE 2027-01-04 21:57:00.

2026-12-21 → 2027-01-04 · $408.00

  • Delta Air Lines DL1520 / DL2931: CLE 2026-12-21 16:35:00 → DEN 2026-12-21 20:19:00; 1 stop(s) via MSP; 344 minutes. Local airport times.
    • DL1520: CLE 2026-12-21 16:35:00 → MSP 2026-12-21 17:41:00; layover at MSP: 78 minutes.
    • DL2931: MSP 2026-12-21 18:59:00 → DEN 2026-12-21 20:19:00.
  • Delta Air Lines DL1113 / DL4954: DEN 2027-01-04 10:39:00 → CLE 2027-01-04 18:40:00; 1 stop(s) via DTW; 361 minutes. Local airport times.
    • DL1113: DEN 2027-01-04 10:39:00 → DTW 2027-01-04 15:20:00; layover at DTW: 140 minutes.
    • DL4954: DTW 2027-01-04 17:40:00 → CLE 2027-01-04 18:40:00.

2026-12-21 → 2027-01-04 · $262.00

  • Frontier Airlines F94639: CLE 2026-12-21 16:50:00 → DEN 2026-12-21 18:23:00; nonstop; 213 minutes. Local airport times.
  • Southwest Airlines WN1540: DEN 2027-01-04 10:40:00 → CLE 2027-01-04 15:20:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $360.00

  • Southwest Airlines WN1806: CLE 2026-12-21 18:45:00 → DEN 2026-12-21 20:05:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN1540: DEN 2027-01-04 10:40:00 → CLE 2027-01-04 15:20:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $408.00

  • United Airlines UA498: CLE 2026-12-21 16:51:00 → DEN 2026-12-21 18:21:00; nonstop; 210 minutes. Local airport times.
  • United Airlines UA619: DEN 2027-01-04 09:45:00 → CLE 2027-01-04 14:39:00; nonstop; 174 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $346.00

  • Southwest Airlines WN1218 / WN120: CLE 2026-12-21 08:45:00 → DEN 2026-12-21 12:30:00; 1 stop(s) via MDW; 345 minutes. Local airport times.
    • WN1218: CLE 2026-12-21 08:45:00 → MDW 2026-12-21 09:10:00; layover at MDW: 100 minutes.
    • WN120: MDW 2026-12-21 10:50:00 → DEN 2026-12-21 12:30:00.
  • Southwest Airlines WN1540: DEN 2027-01-04 10:40:00 → CLE 2027-01-04 15:20:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $346.00

  • Southwest Airlines WN4818 / WN200: CLE 2026-12-21 16:05:00 → DEN 2026-12-21 20:55:00; 1 stop(s) via DAL; 410 minutes. Local airport times.
    • WN4818: CLE 2026-12-21 16:05:00 → DAL 2026-12-21 17:55:00; layover at DAL: 105 minutes.
    • WN200: DAL 2026-12-21 19:40:00 → DEN 2026-12-21 20:55:00.
  • Southwest Airlines WN1540: DEN 2027-01-04 10:40:00 → CLE 2027-01-04 15:20:00; nonstop; 160 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $387.00

  • United Airlines UA1219 / UA2495: CLE 2026-12-21 06:00:00 → DEN 2026-12-21 10:26:00; 1 stop(s) via ORD; 386 minutes. Local airport times.
    • UA1219: CLE 2026-12-21 06:00:00 → ORD 2026-12-21 06:38:00; layover at ORD: 122 minutes.
    • UA2495: ORD 2026-12-21 08:40:00 → DEN 2026-12-21 10:26:00.
  • United Airlines UA619: DEN 2027-01-04 09:45:00 → CLE 2027-01-04 14:39:00; nonstop; 174 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $408.00

  • Delta Air Lines DL4713 / DL1648: CLE 2026-12-21 10:45:00 → DEN 2026-12-21 15:14:00; 1 stop(s) via DTW; 389 minutes. Local airport times.
    • DL4713: CLE 2026-12-21 10:45:00 → DTW 2026-12-21 11:45:00; layover at DTW: 135 minutes.
    • DL1648: DTW 2026-12-21 14:00:00 → DEN 2026-12-21 15:14:00.
  • Delta Air Lines DL1113 / DL4954: DEN 2027-01-04 10:39:00 → CLE 2027-01-04 18:40:00; 1 stop(s) via DTW; 361 minutes. Local airport times.
    • DL1113: DEN 2027-01-04 10:39:00 → DTW 2027-01-04 15:20:00; layover at DTW: 140 minutes.
    • DL4954: DTW 2027-01-04 17:40:00 → CLE 2027-01-04 18:40:00.

More dates for this route