$79+ Cheap flights from San Diego (SAN) to Colorado
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DEN
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Colorado
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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 September 10, 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 September 10, 2026.
This Frontier deal was found by Cheapflights users on 9/9. 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.
Thu 11/266:30 am -
Nonstop2h 34m
Tue 12/12:20 pm -
Nonstop2h 26m
Deal found 9/9![Frontier logo]()
$102
This Frontier deal was found by Cheapflights users on 9/9. 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.
Thu 12/104:41 pm -
Nonstop2h 34m
Sun 12/132:20 pm -
Nonstop2h 26m
Deal found 9/9![Frontier logo]()
$104
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Tue 10/276:25 am -
Nonstop2h 34m
Sat 10/312:28 pm -
Nonstop2h 30m
Deal found 9/9![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 9/6. 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.
Sat 11/146:25 am -
Nonstop2h 34m
Sat 11/142:28 pm -
Nonstop2h 30m
Deal found 9/6![Frontier logo]()
$107
This Priceline deal was found by Cheapflights users on 9/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:25 am -
Nonstop2h 34m
Thu 11/1210:29 pm -
Nonstop2h 28m
Deal found 9/5![Frontier logo]()
$108
This Mytrip deal was found by Cheapflights users on 9/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
Nonstop2h 28m
Deal found 9/5![Frontier logo]()
$109
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:25 am -
Nonstop2h 34m
Wed 11/182:28 pm -
Nonstop2h 30m
Deal found 9/9![Frontier logo]()
$110
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:54 pm -
Nonstop2h 28m
Wed 10/142:29 pm -
Nonstop2h 29m
Deal found 9/9![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 10/14:54 pm -
Nonstop2h 28m
Fri 10/210:29 pm -
Nonstop2h 22m
Deal found 9/10![Frontier logo]()
$112
This Frontier deal was found by Cheapflights users on 9/10. 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.
Mon 11/236:30 am -
Nonstop2h 34m
Thu 11/2610:29 pm -
Nonstop2h 28m
Deal found 9/10![Frontier logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Fri 10/26:25 am -
Nonstop2h 34m
Fri 10/1610:29 pm -
Nonstop2h 27m
Deal found 9/9![Frontier logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/172:01 pm -
1 stop8h 42m
Tue 10/2010:29 pm -
Nonstop2h 27m
Deal found 9/9![Frontier logo]()
$115
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 September 10, 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 September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 10/33:35 pm -
1 stop4h 55m
Wed 10/286:30 am -
1 stop6h 15m
Deal found 9/8![Southwest logo]()
$177
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 10/155:01 pm -
1 stop4h 21m
Mon 10/196:07 pm -
1 stop6h 48m
Deal found 9/9![Delta logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 10/157:00 am -
Nonstop2h 33m
Wed 10/217:43 am -
Nonstop2h 22m
Deal found 9/8![United Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/176:15 am -
1 stop4h 21m
Wed 10/216:33 pm -
1 stop4h 04m
Deal found 9/10![American Airlines logo]()
$253
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/82:10 pm -
1 stop6h 26m
Tue 10/207:07 am -
2 stops11h 03m
Deal found 9/9![Alaska Airlines logo]()
$370
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/124:20 pm -
Nonstop2h 10m
Thu 10/158:10 pm -
1 stop4h 05m
Deal found 9/9![Southwest logo]()
$238
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 11/74:18 pm -
1 stop4h 41m
Wed 11/111:47 pm -
1 stop4h 28m
Deal found 9/9![United Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 11/142:30 pm -
2 stops6h 29m
Wed 11/181:47 pm -
2 stops7h 37m
Deal found 9/9![United Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 9/5. 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.
Sun 10/257:40 pm -
1 stop4h 50m
Thu 10/295:00 pm -
1 stop4h 05m
Deal found 9/5![Southwest logo]()
$272
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/177:00 am -
1 stop4h 31m
Wed 10/211:34 pm -
2 stops7h 34m
Deal found 9/7![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/207:00 am -
2 stops7h 35m
Tue 10/276:30 am -
2 stops6h 50m
Deal found 9/9![Southwest logo]()
$295
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/227:00 am -
1 stop4h 33m
Tue 10/277:00 am -
1 stop6h 56m
Deal found 9/9![United Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 9/9. 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.
Fri 10/212:45 pm -
1 stop4h 00m
Sun 10/46:55 am -
Nonstop2h 30m
Deal found 9/9![Southwest logo]()
$303
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 11/246:15 am -
2 stops16h 32m
Fri 11/276:25 am -
1 stop6h 59m
Deal found 9/9![Delta logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 11/1012:39 pm -
1 stop6h 53m
Sat 11/141:27 pm -
1 stop4h 48m
Deal found 9/9![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 9/6. 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.
Tue 10/208:30 am -
1 stop4h 05m
Sat 10/244:15 pm -
2 stops5h 55m
Deal found 9/6![Southwest logo]()
$307
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 10/177:00 am -
1 stop6h 37m
Tue 10/201:34 pm -
2 stops7h 34m
Deal found 9/6![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/811:00 am -
Nonstop2h 32m
Wed 10/149:00 pm -
Nonstop2h 27m
Deal found 9/9![United Airlines logo]()
$312
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 10/17:00 am -
1 stop4h 27m
Sun 10/45:08 pm -
1 stop6h 19m
Deal found 9/6![United Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Thu 12/38:40 am -
1 stop4h 43m
Mon 12/71:29 pm -
2 stops7h 39m
Deal found 9/5![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 11/236:26 pm -
1 stop5h 33m
Mon 11/307:40 am -
Nonstop2h 30m
Deal found 9/9![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 12/45:23 pm -
1 stop4h 51m
Mon 12/77:40 am -
2 stops8h 24m
Deal found 9/9![Delta logo]()
$775
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/301:31 pm -
2 stops7h 32m
Sun 11/15:10 pm -
1 stop6h 20m
Deal found 9/10![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 11/1211:05 am -
2 stops8h 24m
Sat 11/146:10 pm -
1 stop5h 23m
Deal found 9/8![Delta logo]()
$785
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/162:24 pm -
2 stops6h 51m
Tue 10/205:15 am -
1 stop4h 50m
Deal found 9/7![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 10/2310:57 am -
2 stops7h 37m
Wed 10/288:20 am -
1 stop5h 05m
Deal found 9/7![Delta logo]()
$785
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/2712:39 pm -
1 stop6h 57m
Sat 10/313:20 pm -
1 stop6h 16m
Deal found 9/9![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 10/2711:21 am -
1 stop4h 03m
Sat 10/3110:34 am -
2 stops7h 43m
Deal found 9/5![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/152:24 pm -
2 stops8h 35m
Mon 10/191:29 pm -
2 stops7h 39m
Deal found 9/9![United Airlines logo]()
$378
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 9/291:24 pm -
2 stops7h 42m
Fri 10/26:00 am -
2 stops6h 35m
Deal found 9/9![United Airlines logo]()
$378
Last-minute flights from San Diego to ColoradoDiscover last-minute flight deals from San Diego to Colorado. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Colorado. Data last updated September 10, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 10/14:54 pm -
Nonstop2h 28m
Fri 10/210:29 pm -
Nonstop2h 22m
Deal found 9/10![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Fri 10/26:25 am -
Nonstop2h 34m
Fri 10/1610:29 pm -
Nonstop2h 27m
Deal found 9/9![Frontier logo]()
$114
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 10/33:35 pm -
1 stop4h 55m
Wed 10/286:30 am -
1 stop6h 15m
Deal found 9/8![Southwest logo]()
$177
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:54 pm -
Nonstop2h 28m
Wed 10/142:29 pm -
Nonstop2h 29m
Deal found 9/9![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/106:25 am -
Nonstop2h 33m
Mon 10/127:12 am -
1 stop8h 17m
Deal found 9/9![Frontier logo]()
$108
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:53 pm -
Nonstop2h 31m
Sat 10/177:12 am -
1 stop8h 17m
Deal found 9/8![Frontier logo]()
$117
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Sat 10/172:01 pm -
1 stop8h 42m
Tue 10/2010:29 pm -
Nonstop2h 27m
Deal found 9/9![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 9/6. 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.
Tue 10/204:53 pm -
Nonstop2h 31m
Sat 10/2410:29 pm -
Nonstop2h 27m
Deal found 9/6![Frontier logo]()
$107
This Mytrip deal was found by Cheapflights users on 9/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:53 pm -
Nonstop2h 31m
Tue 10/2710:29 pm -
Nonstop2h 28m
Deal found 9/5![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Tue 10/204:53 pm -
Nonstop2h 31m
Wed 10/2810:29 pm -
Nonstop2h 28m
Deal found 9/6![Frontier logo]()
$119
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Fri 10/236:25 am -
Nonstop2h 33m
Wed 10/282:28 pm -
Nonstop2h 30m
Deal found 9/9![Frontier logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Tue 10/276:25 am -
Nonstop2h 34m
Sat 10/312:28 pm -
Nonstop2h 30m
Deal found 9/9![Frontier logo]()
$106
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 September 10, 2026.
Search for one-way flight options from San Diego to Colorado. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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.
Thu 10/84:20 pm -
Nonstop2h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$79
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Tue 9/296:25 am -
Nonstop2h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$89
This Southwest deal was found by Cheapflights users on 9/8. 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.
Wed 10/76:30 am -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Tue 10/133:14 pm -
2 stops17h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Thu 10/86:25 am -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/166:25 am -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 9/6. 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.
Thu 10/14:54 pm -
Nonstop2h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$93
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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.
Mon 9/286:25 am -
Nonstop2h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$94
This Southwest deal was found by Cheapflights users on 9/8. 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.
Tue 11/109:20 am -
2 stops5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 10/510:28 am -
1 stop28h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/126:25 am -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$98
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 3/68:29 pm -
Nonstop2h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$99
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $102 (Frontier) |
One-way from | $79 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $211 |
Good round-trip deal | $215 or less |
Good one-way deal | $147 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 7,457,451 searches. Data last updated September 10, 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 DiegoColorado Springs
SAN San Diego - COS Colorado Springs
SANCOS
San Diego
Tue 11/10
2:25 pm-8:45 pm
1 stop5h 20m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$89
San DiegoColorado Springs
SAN San Diego - COS Colorado Springs
SANCOS
San Diego
Tue 10/27
9:42 am-5:27 pm
1 stop6h 45m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
San DiegoColorado Springs
SAN San Diego - COS Colorado Springs
SANCOS
San Diego
Wed 11/11
5:13 pm-10:22 pm
1 stop4h 09m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
San DiegoColorado Springs
SAN San Diego - COS Colorado Springs
SANCOS
San Diego
Sat 11/7
5:06 pm-10:22 pm
1 stop4h 16m
Colorado Springs
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Tue 11/17
5:13 pm-11:09 pm
1 stop4h 56m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Wed 11/4
10:57 am-5:46 pm
1 stop5h 49m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
San DiegoHayden
SAN San Diego - HDN Hayden Yampa Valley
SANHDN
San Diego
Fri 12/4
1:50 pm-7:10 pm
1 stop4h 20m
Hayden Yampa Valley
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$114
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 11/13
12:15 pm-5:05 pm
1 stop3h 50m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$114
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Fri 11/6
3:59 pm-11:53 pm
1 stop6h 54m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
San DiegoDenver
SAN San Diego - DEN Denver Intl
SANDEN
San Diego
Sun 12/6
11:05 am-6:57 pm
1 stop6h 52m
Denver Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
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-DRO
SAN-HDN
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-DRO
What is the cheapest month to book a flight from San Diego to Colorado?
Currently, February is the cheapest month in which you can book a flight from San Diego to Colorado (average of $166). Flying from San Diego to Colorado in June is currently the most expensive (average of $304). 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 September 10, 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 44% versus a flight at noon.
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 September 10, 2026.
The most flights from SAN to USCO are scheduled on a Tuesday (27 on average). You will have fewer flight options on Saturday, 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?
Airfare is below average for this route at the moment.
San Diego to Colorado flights typically cost between $144 and $280 in November.The cheapest round-trip price found within the last 5 days was $102 on Frontier (Nov 26-Dec 1).
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 62 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 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 September 5, 2026.
Travelers seeking maximum savings on their San Diego to Colorado flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 September 10, 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.
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
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.
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Alternative routes for San Diego to Colorado
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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 September 10, 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 5 airlines flying from San Diego to Colorado
Discover the top 5 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$46 | Average$144 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$116 | Average$380 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$117 | Average$419 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$369 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$243 | Average$456 | FlexibilityNo cancel fee | On-time71% |