$49+ Cheap flights from San Diego (SAN) to Colorado
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
mai 27 — jun 31
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Colorado with Cheapflights
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Cheapest flights from San Diego to ColoradoExplore the most affordable flight options available from San Diego to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 27, 2026.
Explore the most affordable flight options available from San Diego to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 27, 2026.
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/66:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
ter 5/1910:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/23![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/16:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
seg 9/77:13 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 4/24![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 6/56:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
ter 6/910:29 pm
DEN
- SAN
Nonstop2h 24m
Frontier
Deal found 4/26![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 6/39:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
ter 6/167:40 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 4/24![Frontier logo]()
$86
This WAYA deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/156:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 5/186:45 am
DEN
- SAN
1 stop6h 58m
Frontier
Deal found 4/23![Frontier logo]()
$87
This WAYA deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/141:38 pm
SAN
- DEN
1 stop4h 35m
Frontier
seg 5/187:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Deal found 4/22![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/309:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
qua 6/310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/26![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 6/41:38 pm
SAN
- DEN
1 stop7h 11m
Frontier
sáb 6/610:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/24![Frontier logo]()
$90
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 6/26:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 6/87:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Deal found 4/27![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 5/316:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
qua 6/107:40 am
DEN
- SAN
Nonstop2h 29m
Frontier
Deal found 4/26![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/86:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 5/117:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Deal found 4/23![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 6/49:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
sex 6/510:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/26![Frontier logo]()
$94
Best flights from San Diego to ColoradoDiscover carefully curated flight deals from San Diego to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 27, 2026.
Discover carefully curated flight deals from San Diego to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 27, 2026.
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/236:15 am
SAN
- DEN
1 stop4h 30m
Delta
sáb 5/236:30 pm
DEN
- SAN
1 stop5h 45m
Delta
Deal found 4/22![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/92:55 pm
SAN
- DEN
Nonstop2h 25m
Southwest
seg 5/119:05 pm
DEN
- SAN
Nonstop2h 30m
Southwest
Deal found 4/22![Southwest logo]()
$208
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/98:48 am
SAN
- DEN
Nonstop2h 35m
Alaska Airlines
seg 9/148:06 am
DEN
- SAN
1 stop10h 30m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$240
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/296:35 am
SAN
- DRO
1 stop4h 53m
United Airlines
qua 6/31:30 pm
DRO
- SAN
1 stop4h 50m
United Airlines
Deal found 4/24![United Airlines logo]()
$256
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/286:15 am
SAN
- MTJ
1 stop6h 15m
American Airlines
sex 5/292:21 pm
MTJ
- SAN
1 stop6h 46m
American Airlines
Deal found 4/22![American Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 7/159:53 pm
SAN
- GJT
1 stop13h 20m
Multiple Airlines
dom 7/191:23 pm
GJT
- SAN
2 stops20h 42m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/910:00 am
SAN
- DEN
1 stop7h 10m
Delta
seg 9/146:25 pm
DEN
- SAN
1 stop6h 17m
Delta
Deal found 4/23![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 5/184:10 pm
SAN
- COS
Nonstop2h 15m
Southwest
qui 5/212:15 pm
COS
- SAN
Nonstop2h 20m
Southwest
Deal found 4/25![Southwest logo]()
$218
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 8/215:00 pm
SAN
- DEN
1 stop4h 31m
Delta
seg 8/246:30 am
DEN
- SAN
1 stop4h 57m
Delta
Deal found 4/22![Delta logo]()
$225
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 5/116:32 am
SAN
- GJT
1 stop5h 11m
United Airlines
qua 5/2011:24 am
GJT
- SAN
1 stop6h 55m
United Airlines
Deal found 4/22![United Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 5/198:40 am
SAN
- DEN
2 stops5h 25m
Southwest
ter 5/195:15 pm
DEN
- SAN
1 stop5h 15m
Southwest
Deal found 4/22![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 6/186:55 pm
SAN
- DEN
Nonstop2h 32m
United Airlines
qui 6/256:04 am
DEN
- SAN
1 stop5h 04m
United Airlines
Deal found 4/27![United Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/286:35 am
SAN
- MTJ
1 stop7h 09m
United Airlines
sex 5/293:25 pm
MTJ
- SAN
2 stops10h 05m
United Airlines
Deal found 4/22![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/2912:00 pm
SAN
- COS
1 stop8h 45m
Southwest
dom 5/312:25 pm
COS
- SAN
Nonstop2h 20m
Southwest
Deal found 4/26![Southwest logo]()
$279
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/1010:00 am
SAN
- DEN
1 stop7h 10m
Delta
seg 9/147:15 pm
DEN
- SAN
1 stop4h 40m
Delta
Deal found 4/25![Delta logo]()
$298
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/911:04 am
SAN
- GJT
2 stops10h 14m
United Airlines
qua 5/131:48 pm
GJT
- SAN
1 stop4h 31m
United Airlines
Deal found 4/23![United Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 6/612:45 pm
SAN
- DRO
1 stop4h 33m
American Airlines
sex 6/126:00 am
DRO
- SAN
1 stop3h 57m
American Airlines
Deal found 4/24![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 6/276:40 am
SAN
- DEN
2 stops6h 10m
Southwest
sáb 6/276:05 pm
DEN
- SAN
Nonstop2h 35m
Southwest
Deal found 4/22![Southwest logo]()
$292
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 6/612:45 pm
SAN
- DRO
1 stop4h 33m
American Airlines
qui 6/116:48 pm
DRO
- SAN
1 stop3h 46m
American Airlines
Deal found 4/23![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/226:35 am
SAN
- GUC
1 stop7h 04m
United Airlines
seg 5/253:20 pm
GUC
- SAN
1 stop6h 26m
United Airlines
Deal found 4/22![United Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/135:01 pm
SAN
- COS
1 stop4h 21m
Delta
sáb 5/1611:55 am
COS
- SAN
1 stop5h 01m
Delta
Deal found 4/27![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 7/67:00 pm
SAN
- COS
1 stop5h 15m
Southwest
qua 7/811:20 am
COS
- SAN
1 stop4h 30m
Southwest
Deal found 4/26![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 6/308:40 am
SAN
- DEN
1 stop3h 50m
Southwest
seg 7/68:35 pm
DEN
- SAN
1 stop3h 50m
Southwest
Deal found 4/23![Southwest logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/810:55 am
SAN
- MTJ
2 stops8h 23m
United Airlines
ter 5/121:43 pm
MTJ
- SAN
2 stops7h 31m
United Airlines
Deal found 4/23![United Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/159:28 am
SAN
- EGE
2 stops8h 41m
American Airlines
sex 5/222:12 pm
EGE
- SAN
1 stop6h 55m
American Airlines
Deal found 4/27![American Airlines logo]()
$415
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/133:15 pm
SAN
- COS
2 stops6h 07m
Delta
qua 5/2011:55 am
COS
- SAN
2 stops11h 31m
Delta
Deal found 4/23![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/216:35 am
SAN
- GUC
1 stop5h 09m
United Airlines
seg 5/253:20 pm
GUC
- SAN
1 stop6h 26m
United Airlines
Deal found 4/22![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 6/268:05 pm
SAN
- COS
1 stop4h 10m
Southwest
seg 7/136:40 am
COS
- SAN
1 stop5h 40m
Southwest
Deal found 4/22![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 6/242:40 pm
SAN
- DEN
2 stops7h 25m
Southwest
seg 6/297:00 pm
DEN
- SAN
1 stop4h 40m
Southwest
Deal found 4/24![Southwest logo]()
$318
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/25:55 pm
SAN
- COS
1 stop4h 11m
Delta
sáb 5/911:55 am
COS
- SAN
1 stop5h 01m
Delta
Deal found 4/24![Delta logo]()
$385
Last-minute flights from San Diego to ColoradoDiscover last-minute flight deals from San Diego to Colorado. Data last updated abril 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Colorado. Data last updated abril 27, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/66:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
ter 5/1910:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/23![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/86:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 5/117:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Deal found 4/23![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 5/126:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
ter 5/1212:34 pm
DEN
- SAN
1 stop9h 30m
Frontier
Deal found 4/22![Frontier logo]()
$95
This WAYA deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/141:38 pm
SAN
- DEN
1 stop4h 35m
Frontier
seg 5/187:12 am
DEN
- SAN
Nonstop2h 30m
Frontier
Deal found 4/22![Frontier logo]()
$88
This WAYA deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/156:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 5/186:45 am
DEN
- SAN
1 stop6h 58m
Frontier
Deal found 4/23![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/156:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
sáb 5/169:03 am
DEN
- SAN
1 stop9h 56m
Frontier
Deal found 4/23![Frontier logo]()
$90
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/166:32 am
SAN
- COS
1 stop6h 52m
United Airlines
seg 5/186:57 pm
COS
- SAN
1 stop4h 19m
United Airlines
Deal found 4/23![United Airlines logo]()
$213
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/206:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
sáb 5/2310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/23![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/299:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
qua 6/310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/26![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/309:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
qua 6/310:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/26![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/306:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
seg 6/110:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/23![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 5/316:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
sáb 6/610:29 pm
DEN
- SAN
Nonstop2h 21m
Frontier
Deal found 4/26![Frontier logo]()
$92
One-way flights from San Diego to ColoradoSearch for one-way flight options from San Diego to Colorado. Find affordable one-way fares based on user searches. Data last updated abril 27, 2026.
Search for one-way flight options from San Diego to Colorado. Find affordable one-way fares based on user searches. Data last updated abril 27, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/216:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/26![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 6/2310:04 am
SAN
- DEN
Nonstop2h 33m
Frontier
Deal found 4/24![Frontier logo]()
$53
This Frontier deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 6/246:25 am
SAN
- DEN
Nonstop2h 41m
Frontier
Deal found 4/23![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 5/66:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/22![Frontier logo]()
$55
This WAYA deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/141:38 pm
SAN
- DEN
1 stop4h 35m
Frontier
Deal found 4/22![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 5/151:38 pm
SAN
- DEN
1 stop23h 22m
Frontier
Deal found 4/22![Frontier logo]()
$59
This Trip.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 6/17:36 pm
SAN
- DEN
1 stop6h 49m
Frontier
Deal found 4/24![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 6/69:37 am
SAN
- DEN
Nonstop2h 30m
Frontier
Deal found 4/23![Frontier logo]()
$63
This Cheapflightsfares deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 7/96:25 am
SAN
- DEN
Nonstop2h 38m
Frontier
Deal found 4/27![Frontier logo]()
$64
This Super.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/76:25 am
SAN
- DEN
Nonstop2h 36m
Frontier
Deal found 4/22![Frontier logo]()
$65
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 6/236:50 pm
SAN
- COS
1 stop3h 55m
Southwest
Deal found 4/25![Southwest logo]()
$89
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 5/235:01 pm
SAN
- COS
1 stop4h 21m
Delta
Deal found 4/27![Delta logo]()
$94
Find flight deals from San Diego to Colorado
Keep the following information in mind while searching for San Diego to Colorado flight deals. Data was last updated abril 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $83 (Super.com) |
One-way from | $49 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $180 |
Good round-trip deal | $200 or less |
Good one-way deal | $127 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 27, 2026.
Use the filters below to find and compare flights from San Diego to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoDenver
SAN - DEN
SANDEN
San Diego
sáb 5/23
6:15 am-11:45 am
1 stop4h 30m
Denver Intl
sáb 5/23
6:30 pm-11:15 pm
1 stop5h 45m
$197
San DiegoDenver
SAN - DEN
SANDEN
San Diego
qua 9/9
10:00 am-6:10 pm
1 stop7h 10m
Denver Intl
seg 9/14
6:25 pm-11:42 pm
1 stop6h 17m
$197
San DiegoDenver
SAN - DEN
SANDEN
San Diego
sáb 5/9
2:55 pm-6:20 pm
Nonstop2h 25m
Denver Intl
seg 5/11
9:05 pm-10:35 pm
Nonstop2h 30m
$208
Quickest round-trip
San DiegoColorado Springs
SAN - COS
SANCOS
San Diego
seg 5/18
4:10 pm-7:25 pm
Nonstop2h 15m
Colorado Springs
qui 5/21
2:15 pm-3:35 pm
Nonstop2h 20m
$218
San DiegoDenver
SAN - DEN
SANDEN
San Diego
sex 8/21
5:00 pm-10:31 pm
1 stop4h 31m
Denver Intl
seg 8/24
6:30 am-10:27 am
1 stop4h 57m
$225
San DiegoDenver
SAN - DEN
SANDEN
San Diego
qua 9/9
8:48 am-12:23 pm
Nonstop2h 35m
Denver Intl
seg 9/14
8:06 am-5:36 pm
1 stop10h 30m
$240
San DiegoDurango
SAN - DRO
SANDRO
San Diego
sex 5/29
6:35 am-12:28 pm
1 stop4h 53m
Durango La Plata County
qua 6/3
1:30 pm-5:20 pm
1 stop4h 50m
$256
San DiegoDenver
SAN - DEN
SANDEN
San Diego
ter 5/19
8:40 am-3:05 pm
2 stops5h 25m
Denver Intl
ter 5/19
5:15 pm-9:30 pm
1 stop5h 15m
$257
San DiegoGrand Junction
SAN - GJT
SANGJT
San Diego
seg 5/11
6:32 am-12:43 pm
1 stop5h 11m
Grand Junction Regnl
qua 5/20
11:24 am-5:19 pm
1 stop6h 55m
$266
San DiegoDenver
SAN - DEN
SANDEN
San Diego
qui 6/18
6:55 pm-10:27 pm
Nonstop2h 32m
Denver Intl
qui 6/25
6:04 am-10:08 am
1 stop5h 04m
$267
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Diego to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from San Diego with our price prediction graph.
SAN-DEN
SAN-COS
SAN-GJT
SAN-ASE
SAN-MTJ
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Colorado
SAN-USCO
SAN-DEN
SAN-COS
SAN-GJT
SAN-ASE
How far ahead should I book a flight from San Diego to Colorado?
To ensure you get the cheapest price possible for a flight from San Diego to Colorado, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Diego to Colorado?
Currently, May is the cheapest month in which you can book a flight from San Diego to Colorado (average of $229). Flying from San Diego to Colorado in April is currently the most expensive (average of $468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SAN to CO?
Find hourly flight availability from San Diego to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 27, 2026.
When flying from San Diego to Colorado, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 48% versus a flight at noon.
What is the cheapest day to fly from San Diego to Colorado?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Colorado. Price data was last updated on April 25, 2026.
Travelers seeking maximum savings on their San Diego to Colorado flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Diego to Colorado
Explore weekly flight availability from San Diego to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated abril 27, 2026.
The most flights from SAN to USCO are scheduled on a Monday (30 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).
How much does it cost to fly round-trip from San Diego to Colorado?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated abril 27, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andUnited Airlines from San Diego to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Diego to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for San Diego to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Colorado by cabin class
Find flights from San Diego to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Colorado flights
Browse other San Diego and Colorado flight options. Last updated on abril 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Colorado flights
Consider these flights traveling from San Diego to Colorado.
Top 7 airlines flying from San Diego to Colorado
Discover the top 7 airlines that operate flights from San Diego to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$52 | Average$150 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$177 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$107 | Average$379 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$406 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$382 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$215 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$220 | Average$404 | FlexibilityNo cancel fee | On-time71% |