$271+ Cheap flights from Green Bay (GRB) 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Green Bay 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
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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 September 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 September 14, 2026.
This American Airlines deal was found by Cheapflights users on 9/11. 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 12/26:54 pm -
1 stop5h 00m
Sat 12/512:26 pm -
1 stop6h 31m
Deal found 9/11![American Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/1711:28 am -
1 stop7h 18m
Tue 10/206:09 pm -
1 stop5h 03m
Deal found 9/13![American Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 9/12. 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 11/148:29 pm -
1 stop4h 57m
Tue 11/1712:24 pm -
1 stop6h 35m
Deal found 9/12![American Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 11/106:00 am -
1 stop4h 58m
Tue 11/1711:08 am -
1 stop4h 11m
Deal found 9/12![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 11/106:00 am -
1 stop7h 20m
Thu 11/194:14 pm -
1 stop4h 50m
Deal found 9/12![Delta logo]()
$320
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 12/46:54 pm -
1 stop6h 32m
Wed 12/91:12 pm -
2 stops9h 54m
Deal found 9/14![American Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/36:20 am -
1 stop5h 35m
Sat 10/241:29 pm -
2 stops8h 48m
Deal found 9/11![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/310:05 am -
2 stops7h 24m
Sat 10/243:58 pm -
2 stops7h 14m
Deal found 9/11![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Thu 12/175:30 am -
1 stop7h 37m
Tue 12/221:09 pm -
2 stops9h 50m
Deal found 9/12![American Airlines logo]()
$404
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.
Sat 11/143:15 pm -
1 stop7h 42m
Wed 11/181:28 pm -
2 stops8h 10m
Deal found 9/10![United Airlines logo]()
$456
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.
Thu 12/175:30 am -
1 stop7h 37m
Mon 12/211:09 pm -
2 stops9h 50m
Deal found 9/10![American Airlines logo]()
$460
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.
Thu 10/155:00 am -
1 stop6h 55m
Mon 10/192:55 pm -
2 stops7h 24m
Deal found 9/10![United Airlines logo]()
$504
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 September 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 September 14, 2026.
This Delta deal was found by Cheapflights users on 9/12. 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 11/1412:33 pm -
1 stop4h 29m
Tue 11/174:14 pm -
1 stop4h 50m
Deal found 9/12![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 9/305:00 am -
1 stop6h 32m
Mon 10/55:36 pm -
1 stop4h 43m
Deal found 9/11![United Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 9/12. 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.
Wed 11/115:38 pm -
1 stop6h 56m
Wed 11/186:25 am -
1 stop4h 17m
Deal found 9/12![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 11/106:00 am -
1 stop4h 58m
Sun 11/156:25 am -
1 stop4h 17m
Deal found 9/12![Delta logo]()
$320
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/1410:37 am -
1 stop5h 13m
Wed 11/186:00 am -
1 stop5h 46m
Deal found 9/13![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 9/12. 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.
Fri 2/54:00 pm -
1 stop5h 00m
Tue 2/92:20 pm -
1 stop6h 12m
Deal found 9/12![Delta logo]()
$320
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.
Sat 1/301:25 pm -
2 stops8h 15m
Wed 2/37:00 am -
2 stops8h 56m
Deal found 9/10![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 9/14. 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 10/234:51 pm -
1 stop4h 15m
Fri 10/304:18 pm -
1 stop4h 25m
Deal found 9/14![Delta logo]()
$349
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.
Sat 1/301:25 pm -
2 stops8h 02m
Wed 2/31:20 pm -
2 stops6h 53m
Deal found 9/10![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 9/294:16 pm -
1 stop4h 49m
Wed 10/76:05 am -
1 stop4h 32m
Deal found 9/11![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/35:00 am -
1 stop6h 55m
Sat 10/248:00 am -
1 stop7h 54m
Deal found 9/11![United Airlines logo]()
$447
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 9/304:16 pm -
1 stop4h 49m
Mon 10/56:15 am -
1 stop4h 07m
Deal found 9/13![Delta logo]()
$374
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 11/143:15 pm -
1 stop7h 42m
Wed 11/181:28 pm -
2 stops8h 10m
Deal found 9/9![United Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/224:51 pm -
1 stop4h 15m
Fri 10/304:18 pm -
1 stop4h 25m
Deal found 9/14![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 10/26:15 am -
1 stop4h 48m
Sun 10/46:15 am -
1 stop4h 07m
Deal found 9/11![Delta logo]()
$394
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.
Thu 10/155:00 am -
1 stop6h 55m
Mon 10/192:55 pm -
2 stops7h 24m
Deal found 9/10![United Airlines logo]()
$504
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.
Tue 10/205:00 am -
1 stop7h 29m
Sat 10/2412:15 pm -
1 stop7h 48m
Deal found 9/10![United Airlines logo]()
$689
Last-minute flights from Green Bay to ColoradoDiscover last-minute flight deals from Green Bay to Colorado. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Colorado. Data last updated September 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/12. 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 9/2310:31 am -
2 stops12h 29m
Tue 10/61:37 pm -
2 stops8h 42m
Deal found 9/12![United Airlines logo]()
$650
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.
Wed 9/2310:05 am -
2 stops10h 24m
Tue 10/612:54 pm -
2 stops10h 18m
Deal found 9/10![American Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 9/275:00 am -
1 stop6h 55m
Thu 10/111:57 am -
1 stop6h 52m
Deal found 9/11![United Airlines logo]()
$597
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:15 am -
1 stop4h 50m
Wed 10/76:05 am -
1 stop4h 32m
Deal found 9/10![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/36:20 am -
1 stop5h 35m
Sat 10/241:29 pm -
2 stops8h 48m
Deal found 9/11![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/310:05 am -
2 stops7h 24m
Sat 10/243:58 pm -
2 stops7h 14m
Deal found 9/11![American Airlines logo]()
$359
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.
Thu 10/155:00 am -
1 stop6h 55m
Mon 10/192:55 pm -
2 stops7h 24m
Deal found 9/10![United Airlines logo]()
$504
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.
Thu 10/158:04 pm -
2 stops14h 33m
Mon 10/193:58 pm -
2 stops16h 24m
Deal found 9/10![American Airlines logo]()
$626
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/162:46 pm -
2 stops9h 45m
Sun 10/183:58 pm -
2 stops7h 14m
Deal found 9/11![American Airlines logo]()
$625
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/1711:28 am -
1 stop7h 18m
Tue 10/206:09 pm -
1 stop5h 03m
Deal found 9/13![American Airlines logo]()
$278
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.
Thu 10/228:04 pm -
1 stop5h 32m
Thu 10/293:14 pm -
2 stops7h 58m
Deal found 9/10![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/248:05 pm -
1 stop5h 31m
Wed 10/286:09 pm -
1 stop5h 03m
Deal found 9/12![American Airlines logo]()
$326
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 September 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 September 14, 2026.
This Delta deal was found by Cheapflights users on 9/11. 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.
Fri 10/26:15 am -
1 stop6h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 11/115:50 am -
2 stops9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![American Airlines logo]()
$324
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 9/263:42 pm -
1 stop7h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$365
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:43 am -
2 stops12h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 9/299:05 am -
1 stop7h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$375
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.
Sun 9/275:00 am -
1 stop6h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 10/185:00 am -
2 stops14h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$481
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.
Sun 9/275:30 am -
2 stops13h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 9/13. 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.
Sun 9/207:00 am -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$494
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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (American Airlines) |
Popular in | June |
Cheapest in | March |
Average price | $391 |
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 7,457,451 searches. Data last updated September 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
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Sat 11/14
12:33 pm-4:02 pm
1 stop4h 29m
Denver Intl
Tue 11/17
4:14 pm-10:04 pm
1 stop4h 50m
$291
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Wed 11/11
5:38 pm-11:34 pm
1 stop6h 56m
Denver Intl
Wed 11/18
6:25 am-11:42 am
1 stop4h 17m
$291
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Wed 12/2
5:00 am-10:36 am
1 stop6h 36m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Tue 12/29
7:16 pm-12:32 am
1 stop6h 16m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Fri 10/2
6:15 am-12:08 pm
1 stop6h 53m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Quickest round-trip
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Wed 11/11
5:55 pm-10:44 pm
1 stop5h 49m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Thu 12/10
8:03 am-2:49 pm
1 stop7h 46m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$319
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Tue 11/10
6:00 am-9:58 am
1 stop4h 58m
Denver Intl
Sun 11/15
6:25 am-11:42 am
1 stop4h 17m
$320
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Fri 2/5
4:00 pm-8:00 pm
1 stop5h 00m
Denver Intl
Tue 2/9
2:20 pm-9:32 pm
1 stop6h 12m
$320
Green BayDenver
GRB Green Bay Austin-Straubel - DEN Denver Intl
GRBDEN
Green Bay Austin-Straubel
Thu 12/10
2:40 pm-11:48 pm
2 stops10h 08m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$324
Showing 1-10 of 29 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, March is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $309). Flying from Green Bay to Colorado in June is currently the most expensive (average of $453). 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.
How much does it cost to fly round-trip from Green Bay to Colorado?
Airfare is below average for this route at the moment.
Green Bay to Colorado flights typically cost between $299 and $474 in December.The cheapest round-trip price found within the last 5 days was $271 on American Airlines (Dec 2-Dec 5).
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 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.
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
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
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
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 September 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Green Bay to Colorado flights
Consider these flights traveling from Green Bay to Colorado.
Top 3 airlines flying from Green Bay to Colorado
Discover the top 3 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 7,457,451 searches. Data last updated September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$254 | Average$309 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$258 | Average$359 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$260 | Average$368 | FlexibilityNo cancel fee | On-time71% |