$101+ Cheap flights from Green Bay (GRB) 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Jul 14 — Jul 211
Round-trip
1 adult, Economy
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Find cheap flights from Green Bay to Colorado with Cheapflights
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Cheapest flights from Green Bay to ColoradoExplore the most affordable flight options available from Green Bay to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
Explore the most affordable flight options available from Green Bay to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/412:46 pm
GRB
- DEN
1 stop5h 43m
American Airlines
Tue 7/75:57 pm
DEN
- GRB
1 stop5h 15m
American Airlines
Deal found 6/12![American Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 9/86:55 pm
GRB
- DEN
1 stop6h 04m
American Airlines
Sat 9/127:16 am
DEN
- GRB
1 stop7h 18m
American Airlines
Deal found 6/14![American Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:16 pm
GRB
- DEN
1 stop4h 35m
Delta
Sat 9/196:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:15 am
GRB
- DEN
1 stop6h 55m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$304
This American Airlines deal was found by Cheapflights users on 6/12. 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 10/249:52 am
GRB
- DEN
2 stops8h 46m
American Airlines
Wed 10/285:46 pm
DEN
- GRB
1 stop4h 24m
American Airlines
Deal found 6/12![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/316:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Sat 8/84:59 pm
DEN
- GRB
1 stop5h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/14. 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 6/276:51 pm
GRB
- DEN
1 stop6h 26m
American Airlines
Sat 7/116:19 pm
DEN
- GRB
1 stop4h 53m
American Airlines
Deal found 6/14![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 9/235:43 am
GRB
- DEN
1 stop5h 19m
American Airlines
Sat 9/268:18 am
DEN
- GRB
1 stop6h 16m
American Airlines
Deal found 6/12![American Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:56 pm
GRB
- DEN
1 stop6h 06m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 6/1312:04 pm
GRB
- DEN
1 stop4h 34m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/12![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 6/14. 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 9/115:30 am
GRB
- COS
1 stop7h 44m
Delta
Mon 9/141:19 pm
COS
- GRB
1 stop8h 10m
Delta
Deal found 6/14![Delta logo]()
$362
This American Airlines deal was found by Cheapflights users on 6/13. 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 9/55:37 am
GRB
- GJT
2 stops13h 49m
American Airlines
Thu 9/106:53 pm
GJT
- GRB
2 stops13h 42m
American Airlines
Deal found 6/13![American Airlines logo]()
$390
Best flights from Green Bay to ColoradoDiscover carefully curated flight deals from Green Bay to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
Discover carefully curated flight deals from Green Bay to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:16 pm
GRB
- DEN
1 stop4h 35m
Delta
Sat 9/196:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/316:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Sat 8/84:59 pm
DEN
- GRB
1 stop5h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 9/86:55 pm
GRB
- DEN
1 stop6h 04m
American Airlines
Sat 9/127:26 am
DEN
- GRB
2 stops11h 30m
American Airlines
Deal found 6/14![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:00 pm
GRB
- DEN
1 stop7h 29m
Delta
Mon 9/216:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/46:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Sat 8/84:29 pm
DEN
- GRB
1 stop5h 50m
United Airlines
Deal found 6/14![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/11. 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 7/26:15 am
GRB
- DEN
1 stop6h 55m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/11![Delta logo]()
$333
This American Airlines deal was found by Cheapflights users on 6/13. 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 9/55:37 am
GRB
- GJT
2 stops13h 49m
American Airlines
Thu 9/106:53 pm
GJT
- GRB
2 stops13h 42m
American Airlines
Deal found 6/13![American Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 6/14. 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 9/115:30 am
GRB
- COS
1 stop7h 44m
Delta
Mon 9/141:19 pm
COS
- GRB
1 stop8h 10m
Delta
Deal found 6/14![Delta logo]()
$362
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/296:25 am
GRB
- COS
1 stop5h 08m
United Airlines
Tue 9/111:55 am
COS
- GRB
1 stop6h 26m
United Airlines
Deal found 6/9![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 8/46:08 am
GRB
- DEN
2 stops9h 55m
American Airlines
Sat 8/85:44 pm
DEN
- GRB
1 stop5h 32m
American Airlines
Deal found 6/14![American Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/12. 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
GRB
- COS
1 stop8h 10m
United Airlines
Wed 11/1812:16 pm
COS
- GRB
1 stop7h 48m
United Airlines
Deal found 6/12![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 10/209:05 am
GRB
- DEN
1 stop7h 12m
United Airlines
Sat 10/245:36 pm
DEN
- GRB
1 stop4h 43m
United Airlines
Deal found 6/10![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 11/141:11 pm
GRB
- DRO
2 stops9h 54m
United Airlines
Wed 11/181:15 pm
DRO
- GRB
2 stops10h 04m
United Airlines
Deal found 6/10![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 11/145:00 am
GRB
- ASE
1 stop7h 04m
United Airlines
Wed 11/181:00 pm
ASE
- GRB
1 stop5h 05m
United Airlines
Deal found 6/10![United Airlines logo]()
$449
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 7/219:51 am
GRB
- DRO
2 stops15h 11m
American Airlines
Tue 8/46:00 am
DRO
- GRB
2 stops17h 12m
American Airlines
Deal found 6/12![American Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/2711:45 am
GRB
- GJT
2 stops9h 50m
United Airlines
Tue 9/11:40 pm
GJT
- GRB
2 stops8h 39m
United Airlines
Deal found 6/14![United Airlines logo]()
$685
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 8/2611:45 am
GRB
- GJT
2 stops9h 50m
United Airlines
Wed 9/21:40 pm
GJT
- GRB
2 stops8h 39m
United Airlines
Deal found 6/14![United Airlines logo]()
$696
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 7/201:01 pm
GRB
- DRO
2 stops7h 58m
American Airlines
Sat 8/812:40 pm
DRO
- GRB
3 stops10h 36m
American Airlines
Deal found 6/12![American Airlines logo]()
$1,069
This United Airlines deal was found by Cheapflights users on 6/13. 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 9/52:31 pm
GRB
- GJT
2 stops8h 28m
United Airlines
Thu 9/1011:19 am
GJT
- GRB
3 stops8h 45m
United Airlines
Deal found 6/13![United Airlines logo]()
$783
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/2112:34 pm
GRB
- DRO
2 stops8h 48m
United Airlines
Tue 8/45:15 am
DRO
- GRB
3 stops8h 54m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,008
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/206:30 am
GRB
- DRO
3 stops9h 17m
United Airlines
Sat 8/87:00 am
DRO
- GRB
3 stops8h 51m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,588
Last-minute flights from Green Bay to ColoradoDiscover last-minute flight deals from Green Bay to Colorado. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Colorado. Data last updated June 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 6/126:04 am
GRB
- COS
1 stop6h 52m
American Airlines
Sun 6/1412:26 pm
COS
- GRB
1 stop4h 55m
American Airlines
Deal found 6/10![American Airlines logo]()
$685
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 6/1312:04 pm
GRB
- DEN
1 stop4h 34m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/11![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/136:30 am
GRB
- COS
1 stop5h 40m
United Airlines
Sun 6/1412:13 pm
COS
- GRB
1 stop5h 58m
United Airlines
Deal found 6/11![United Airlines logo]()
$606
This American Airlines deal was found by Cheapflights users on 6/14. 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 6/276:51 pm
GRB
- DEN
1 stop6h 26m
American Airlines
Sat 7/116:19 pm
DEN
- GRB
1 stop4h 53m
American Airlines
Deal found 6/14![American Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:15 am
GRB
- DEN
1 stop6h 55m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:56 pm
GRB
- DEN
1 stop6h 06m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 6/10![Delta logo]()
$343
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/412:46 pm
GRB
- DEN
1 stop5h 43m
American Airlines
Tue 7/75:57 pm
DEN
- GRB
1 stop5h 15m
American Airlines
Deal found 6/12![American Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/186:30 am
GRB
- COS
1 stop5h 39m
United Airlines
Sat 7/251:30 pm
COS
- GRB
2 stops8h 49m
United Airlines
Deal found 6/11![United Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/186:08 am
GRB
- COS
2 stops17h 15m
American Airlines
Sat 7/255:15 pm
COS
- GRB
2 stops15h 01m
American Airlines
Deal found 6/11![American Airlines logo]()
$617
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/206:52 pm
GRB
- DRO
2 stops15h 41m
United Airlines
Sat 8/87:00 am
DRO
- GRB
2 stops15h 19m
United Airlines
Deal found 6/12![United Airlines logo]()
$663
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 7/219:51 am
GRB
- DRO
2 stops15h 11m
American Airlines
Tue 8/46:00 am
DRO
- GRB
2 stops17h 12m
American Airlines
Deal found 6/12![American Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/316:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Sat 8/84:59 pm
DEN
- GRB
1 stop5h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$312
One-way flights from Green Bay to ColoradoSearch for one-way flight options from Green Bay to Colorado. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
Search for one-way flight options from Green Bay to Colorado. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/16:54 pm
GRB
- DEN
1 stop6h 23m
American Airlines
Deal found 6/11![American Airlines logo]()
$101
This American Airlines deal was found by Cheapflights users on 6/12. 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 7/412:46 pm
GRB
- DEN
2 stops7h 55m
American Airlines
Deal found 6/12![American Airlines logo]()
$106
This Delta deal was found by Cheapflights users on 6/14. 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 9/115:30 am
GRB
- COS
1 stop7h 44m
Delta
Deal found 6/14![Delta logo]()
$203
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 7/296:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Deal found 6/12![United Airlines logo]()
$218
This Delta deal was found by Cheapflights users on 6/13. 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.
Sat 7/116:15 am
GRB
- DEN
1 stop6h 50m
Delta
Deal found 6/13![Delta logo]()
$227
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:15 am
GRB
- COS
1 stop5h 15m
Delta
Deal found 6/10![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 7/86:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Deal found 6/13![United Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/21:01 pm
GRB
- COS
2 stops10h 22m
American Airlines
Deal found 6/10![American Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/166:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Deal found 6/11![United Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/13. 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 7/96:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Deal found 6/13![United Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 6/13. 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.
Thu 7/93:24 pm
GRB
- DEN
2 stops10h 14m
American Airlines
Deal found 6/13![American Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/76:52 pm
GRB
- DEN
1 stop5h 56m
United Airlines
Deal found 6/11![United Airlines logo]()
$333
Find flight deals from Green Bay to Colorado
Keep the following information in mind while searching for Green Bay to Colorado flight deals. Data was last updated June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $274 (American Airlines) |
One-way from | $101 (American Airlines) |
Popular in | April |
Cheapest in | June |
Average price | $247 |
Cheapflights Fare Finder
Customize your flight search to find flights from Green Bay 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 June 14, 2026.
Use the filters below to find and compare flights from Green Bay to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Mon 9/14
4:16 pm-7:51 pm
1 stop4h 35m
Denver Intl
Sat 9/19
6:00 am-11:20 am
1 stop4h 20m
$302
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Fri 7/31
6:52 pm-11:48 pm
1 stop5h 56m
Denver Intl
Sat 8/8
4:59 pm-11:19 pm
1 stop5h 20m
$312
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Fri 9/11
4:00 pm-10:29 pm
1 stop7h 29m
Denver Intl
Mon 9/21
6:00 am-11:20 am
1 stop4h 20m
$333
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Thu 7/2
6:15 am-12:10 pm
1 stop6h 55m
Denver Intl
Wed 7/8
6:00 am-11:20 am
1 stop4h 20m
$333
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Tue 9/8
6:55 pm-11:59 pm
1 stop6h 04m
Denver Intl
Sat 9/12
7:26 am-7:56 pm
2 stops11h 30m
$338
Green BayColorado Springs
GRB - COS
GRBCOS
Green Bay Austin-Straubel
Fri 9/11
5:30 am-12:14 pm
1 stop7h 44m
Colorado Springs
Mon 9/14
1:19 pm-10:29 pm
1 stop8h 10m
$362
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Tue 8/4
6:52 pm-11:48 pm
1 stop5h 56m
Denver Intl
Sat 8/8
4:29 pm-11:19 pm
1 stop5h 50m
$364
Green BayGrand Junction
GRB - GJT
GRBGJT
Green Bay Austin-Straubel
Sat 9/5
5:37 am-6:26 pm
2 stops13h 49m
Grand Junction Regnl
Thu 9/10
6:53 pm-9:35 am
2 stops13h 42m
$390
Green BayColorado Springs
GRB - COS
GRBCOS
Green Bay Austin-Straubel
Sat 8/29
6:25 am-10:33 am
1 stop5h 08m
Colorado Springs
Tue 9/1
11:55 am-7:21 pm
1 stop6h 26m
$399
Green BayColorado Springs
GRB - COS
GRBCOS
Green Bay Austin-Straubel
Sat 11/14
2:30 pm-9:40 pm
1 stop8h 10m
Colorado Springs
Wed 11/18
12:16 pm-9:04 pm
1 stop7h 48m
$399
Showing 1-10 of 43 resultsSorted by cheapest first
Best time to book a flight from Green Bay to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Green Bay with our price prediction graph.
GRB-DEN
GRB-COS
GRB-DRO
GRB-GJT
GRB-ASE
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 Green Bay to Colorado
GRB-USCO
GRB-DEN
GRB-COS
GRB-DRO
GRB-GJT
What is the cheapest month to book a flight from Green Bay to Colorado?
Currently, July is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $80). Flying from Green Bay to Colorado in April is currently the most expensive (average of $296). 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 GRB to CO?
Find hourly flight availability from Green Bay 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 June 14, 2026.
A simple way to save on the total cost of your ticket is to fly from Green Bay to Colorado at noon. If you’re flexible enough to do this you can expect to save up to 62% on your trip compared to booking a flight in the morning.
How much does it cost to fly round-trip from Green Bay to Colorado?
How far ahead should I book a flight from Green Bay to Colorado?
Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Green Bay to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 June 14, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Green Bay 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.
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Green Bay 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 Green Bay to Colorado
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Complete your trip
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Search flights from Green Bay to Colorado by cabin class
Find flights from Green Bay to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Green Bay and Colorado flights
Browse other Green Bay and Colorado flight options. Last updated on June 14, 2026.
Popular flight searches
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Green Bay to Colorado flights
Consider these flights traveling from Green Bay to Colorado.
Top 4 airlines flying from Green Bay to Colorado
Discover the top 4 airlines that operate flights from Green Bay 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$159 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$247 | Average$309 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$250 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$368 | FlexibilityNo cancel fee | On-time71% |