$217+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — DEN
May 29 — Jun 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 Green Bay to Colorado
Cheapest
Best
Last-minute
One-way
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 April 29, 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 April 29, 2026.
This American Airlines deal was found by Cheapflights users on 4/29. 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
1 stop4h 28m
American Airlines
Wed 10/287:32 am
DEN
- GRB
1 stop5h 40m
American Airlines
Deal found 4/29![American Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:19 pm
GRB
- DEN
1 stop4h 56m
Delta
Tue 6/96:00 am
DEN
- GRB
1 stop4h 23m
Delta
Deal found 4/27![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:19 pm
GRB
- DEN
1 stop4h 56m
Delta
Tue 6/96:00 am
DEN
- GRB
1 stop4h 23m
Delta
Deal found 4/27![Delta logo]()
$273
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 5/246:00 am
GRB
- DEN
1 stop6h 36m
American Airlines
Sun 5/316:55 am
DEN
- GRB
1 stop6h 30m
American Airlines
Deal found 4/29![American Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 4/28. 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 9/255:25 pm
GRB
- DEN
1 stop5h 13m
Delta
Wed 9/306:10 am
DEN
- GRB
1 stop3h 59m
Delta
Deal found 4/28![Delta logo]()
$292
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:01 pm
GRB
- DEN
1 stop6h 57m
Delta
Thu 6/46:00 am
DEN
- GRB
1 stop4h 13m
Delta
Deal found 4/27![Delta logo]()
$294
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:51 pm
GRB
- DEN
1 stop6h 08m
American Airlines
Sat 6/66:38 am
DEN
- GRB
2 stops10h 43m
American Airlines
Deal found 4/27![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:55 am
GRB
- DEN
2 stops10h 44m
American Airlines
Sat 10/37:30 am
DEN
- GRB
1 stop5h 43m
American Airlines
Deal found 4/24![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:00 pm
GRB
- DEN
1 stop5h 53m
Delta
Mon 6/226:00 am
DEN
- GRB
1 stop4h 23m
Delta
Deal found 4/27![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:30 pm
GRB
- DRO
2 stops8h 35m
United Airlines
Wed 11/185:30 am
DRO
- GRB
2 stops7h 25m
United Airlines
Deal found 4/24![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 4/28. 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
- GJT
2 stops8h 16m
United Airlines
Wed 11/181:20 pm
GJT
- GRB
2 stops9h 59m
United Airlines
Deal found 4/28![United Airlines logo]()
$415
This Delta deal was found by Cheapflights users on 4/28. 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 6/55:20 am
GRB
- COS
1 stop8h 28m
Delta
Tue 6/91:40 pm
COS
- GRB
1 stop8h 11m
Delta
Deal found 4/28![Delta logo]()
$418
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 April 29, 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 April 29, 2026.
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:53 am
GRB
- DEN
1 stop4h 38m
Delta
Tue 10/64:00 pm
DEN
- GRB
1 stop4h 32m
Delta
Deal found 4/25![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:35 pm
GRB
- DEN
1 stop6h 05m
United Airlines
Sat 5/234:20 pm
DEN
- GRB
1 stop5h 20m
United Airlines
Deal found 4/26![United Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/292:55 pm
GRB
- DRO
2 stops10h 09m
American Airlines
Fri 6/55:06 pm
DRO
- GRB
2 stops15h 07m
American Airlines
Deal found 4/28![American Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1311:07 am
GRB
- DEN
1 stop7h 08m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 4/25![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 4/28. 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 7/312:05 pm
GRB
- DEN
1 stop4h 33m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 20m
Delta
Deal found 4/28![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:25 pm
GRB
- DEN
1 stop5h 13m
Delta
Wed 9/306:10 am
DEN
- GRB
1 stop3h 59m
Delta
Deal found 4/24![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:00 pm
GRB
- DEN
1 stop5h 53m
Delta
Mon 6/226:00 am
DEN
- GRB
1 stop4h 23m
Delta
Deal found 4/26![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:05 pm
GRB
- DEN
1 stop4h 35m
Delta
Wed 7/86:00 am
DEN
- GRB
1 stop4h 21m
Delta
Deal found 4/24![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/135:00 am
GRB
- COS
1 stop6h 47m
United Airlines
Sun 5/176:00 am
COS
- GRB
1 stop6h 58m
United Airlines
Deal found 4/28![United Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:51 pm
GRB
- COS
2 stops16h 02m
American Airlines
Wed 7/83:45 pm
COS
- GRB
2 stops16h 34m
American Airlines
Deal found 4/26![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:51 pm
GRB
- COS
1 stop21h 39m
American Airlines
Mon 9/143:51 pm
COS
- GRB
2 stops16h 13m
American Airlines
Deal found 4/27![American Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/52:35 pm
GRB
- COS
1 stop8h 15m
United Airlines
Sun 6/75:44 am
COS
- GRB
1 stop7h 16m
United Airlines
Deal found 4/28![United Airlines logo]()
$609
This Delta deal was found by Cheapflights users on 4/28. 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 6/511:11 am
GRB
- COS
2 stops11h 16m
Delta
Mon 6/81:40 pm
COS
- GRB
1 stop8h 11m
Delta
Deal found 4/28![Delta logo]()
$473
This American Airlines deal was found by Cheapflights users on 4/28. 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 6/249:43 am
GRB
- GJT
2 stops15h 00m
American Airlines
Mon 6/294:56 pm
GJT
- GRB
2 stops18h 33m
American Airlines
Deal found 4/28![American Airlines logo]()
$640
This Delta deal was found by Cheapflights users on 4/28. 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 6/511:53 am
GRB
- COS
2 stops10h 34m
Delta
Tue 6/911:10 am
COS
- GRB
2 stops10h 41m
Delta
Deal found 4/28![Delta logo]()
$478
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/111:15 pm
GRB
- GJT
2 stops10h 03m
United Airlines
Fri 5/1511:24 am
GJT
- GRB
2 stops8h 43m
United Airlines
Deal found 4/26![United Airlines logo]()
$747
This Delta deal was found by Cheapflights users on 4/28. 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 6/611:53 am
GRB
- COS
1 stop23h 37m
Delta
Tue 6/91:40 pm
COS
- GRB
1 stop8h 11m
Delta
Deal found 4/28![Delta logo]()
$522
This Delta deal was found by Cheapflights users on 4/28. 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 6/611:53 am
GRB
- COS
1 stop23h 37m
Delta
Mon 6/81:40 pm
COS
- GRB
1 stop8h 11m
Delta
Deal found 4/28![Delta logo]()
$522
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/226:30 am
GRB
- DRO
3 stops9h 17m
United Airlines
Wed 5/271:30 pm
DRO
- GRB
2 stops8h 10m
United Airlines
Deal found 4/28![United Airlines logo]()
$887
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:10 am
GRB
- COS
1 stop8h 25m
Delta
Wed 7/811:10 am
COS
- GRB
2 stops8h 20m
Delta
Deal found 4/26![Delta logo]()
$537
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:00 am
GRB
- GJT
2 stops8h 43m
United Airlines
Thu 5/145:30 am
GJT
- GRB
2 stops7h 28m
United Airlines
Deal found 4/25![United Airlines logo]()
$891
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:40 am
GRB
- GJT
2 stops11h 47m
American Airlines
Thu 5/1412:42 pm
GJT
- GRB
3 stops9h 53m
American Airlines
Deal found 4/25![American Airlines logo]()
$1,134
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:20 am
GRB
- COS
1 stop8h 28m
Delta
Mon 5/251:55 pm
COS
- GRB
1 stop7h 57m
Delta
Deal found 4/25![Delta logo]()
$620
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/226:30 am
GRB
- DRO
3 stops9h 17m
United Airlines
Mon 5/255:15 am
DRO
- GRB
2 stops7h 45m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,021
This Delta deal was found by Cheapflights users on 4/28. 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 6/411:11 am
GRB
- COS
2 stops12h 11m
Delta
Tue 6/911:10 am
COS
- GRB
2 stops10h 41m
Delta
Deal found 4/28![Delta logo]()
$642
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/215:00 am
GRB
- DRO
3 stops8h 28m
United Airlines
Mon 5/257:00 am
DRO
- GRB
3 stops8h 51m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,380
Last-minute flights from Green Bay to ColoradoDiscover last-minute flight deals from Green Bay to Colorado. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Colorado. Data last updated April 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:09 am
GRB
- DEN
1 stop7h 12m
Delta
Sun 5/109:06 am
DEN
- GRB
1 stop5h 33m
Delta
Deal found 4/26![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:09 am
GRB
- DEN
1 stop7h 12m
Delta
Mon 5/114:10 pm
DEN
- GRB
1 stop4h 48m
Delta
Deal found 4/26![Delta logo]()
$410
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:20 am
GRB
- DEN
1 stop6h 52m
Delta
Tue 5/126:00 am
DEN
- GRB
1 stop4h 13m
Delta
Deal found 4/26![Delta logo]()
$392
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:20 am
GRB
- DEN
1 stop6h 52m
Delta
Sun 5/109:06 am
DEN
- GRB
1 stop5h 33m
Delta
Deal found 4/26![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:35 pm
GRB
- DEN
1 stop5h 44m
United Airlines
Sun 5/106:00 am
DEN
- GRB
1 stop5h 34m
United Airlines
Deal found 4/26![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:30 am
GRB
- DEN
1 stop5h 05m
United Airlines
Wed 5/137:32 am
DEN
- GRB
1 stop5h 26m
United Airlines
Deal found 4/24![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:20 am
GRB
- DEN
1 stop5h 00m
Delta
Sat 5/1610:48 am
DEN
- GRB
1 stop3h 51m
Delta
Deal found 4/25![Delta logo]()
$357
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/99:42 am
GRB
- DEN
2 stops8h 57m
American Airlines
Sat 5/1610:37 am
DEN
- GRB
1 stop5h 17m
American Airlines
Deal found 4/28![American Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/135:00 am
GRB
- COS
1 stop6h 47m
United Airlines
Sun 5/176:00 am
COS
- GRB
1 stop6h 58m
United Airlines
Deal found 4/28![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 4/28. 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 5/135:00 am
GRB
- DRO
2 stops7h 06m
United Airlines
Sun 5/175:30 am
DRO
- GRB
2 stops8h 40m
United Airlines
Deal found 4/28![United Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/222:55 pm
GRB
- DRO
2 stops10h 09m
American Airlines
Wed 5/2712:57 pm
DRO
- GRB
2 stops9h 56m
American Airlines
Deal found 4/28![American Airlines logo]()
$515
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/292:55 pm
GRB
- DRO
2 stops10h 09m
American Airlines
Fri 6/55:06 pm
DRO
- GRB
2 stops15h 07m
American Airlines
Deal found 4/28![American Airlines logo]()
$492
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 April 29, 2026.
Search for one-way flight options from Green Bay to Colorado. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:05 pm
GRB
- DEN
1 stop4h 33m
Delta
Deal found 4/27![Delta logo]()
$217
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:24 pm
GRB
- DEN
1 stop6h 21m
American Airlines
Deal found 4/27![American Airlines logo]()
$236
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:42 am
GRB
- DEN
2 stops11h 49m
American Airlines
Deal found 4/24![American Airlines logo]()
$241
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:30 pm
GRB
- DEN
1 stop5h 29m
United Airlines
Deal found 4/27![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:01 pm
GRB
- DEN
2 stops11h 08m
American Airlines
Deal found 4/27![American Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 pm
GRB
- DEN
1 stop5h 44m
Delta
Deal found 4/25![Delta logo]()
$259
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:51 pm
GRB
- DEN
1 stop14h 29m
American Airlines
Deal found 4/27![American Airlines logo]()
$264
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:30 pm
GRB
- DEN
1 stop5h 29m
United Airlines
Deal found 4/27![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:59 pm
GRB
- DEN
2 stops9h 02m
American Airlines
Deal found 4/25![American Airlines logo]()
$274
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:00 am
GRB
- DEN
1 stop7h 59m
Delta
Deal found 4/27![Delta logo]()
$279
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/512:59 pm
GRB
- DEN
2 stops11h 56m
American Airlines
Deal found 4/26![American Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/128:45 pm
GRB
- DEN
1 stop5h 13m
United Airlines
Deal found 4/25![United Airlines logo]()
$289
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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (American Airlines) |
One-way from | $217 (Delta) |
Popular in | April |
Cheapest in | June |
Average price | $397 |
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 April 29, 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 - DEN
GRBDEN
Green Bay Austin-Straubel
Sat 10/3
11:53 am-3:31 pm
1 stop4h 38m
Denver Intl
Tue 10/6
4:00 pm-9:32 pm
1 stop4h 32m
$271
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Sat 6/13
11:07 am-5:15 pm
1 stop7h 08m
Denver Intl
Wed 7/8
6:00 am-11:20 am
1 stop4h 20m
$312
Quickest round-trip
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Fri 7/3
12:05 pm-3:38 pm
1 stop4h 33m
Denver Intl
Wed 7/8
6:00 am-11:20 am
1 stop4h 20m
$312
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Fri 9/25
5:25 pm-9:38 pm
1 stop5h 13m
Denver Intl
Wed 9/30
6:10 am-11:09 am
1 stop3h 59m
$312
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Fri 6/19
6:00 pm-10:53 pm
1 stop5h 53m
Denver Intl
Mon 6/22
6:00 am-11:23 am
1 stop4h 23m
$313
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Thu 7/2
12:05 pm-3:40 pm
1 stop4h 35m
Denver Intl
Wed 7/8
6:00 am-11:21 am
1 stop4h 21m
$335
Green BayDenver
GRB - DEN
GRBDEN
Green Bay Austin-Straubel
Sat 5/16
2:35 pm-7:40 pm
1 stop6h 05m
Denver Intl
Sat 5/23
4:20 pm-10:40 pm
1 stop5h 20m
$343
Green BayColorado Springs
GRB - COS
GRBCOS
Green Bay Austin-Straubel
Fri 6/5
11:11 am-9:27 pm
2 stops11h 16m
Colorado Springs
Mon 6/8
1:40 pm-10:51 pm
1 stop8h 11m
$473
Green BayColorado Springs
GRB - COS
GRBCOS
Green Bay Austin-Straubel
Fri 6/5
11:53 am-9:27 pm
2 stops10h 34m
Colorado Springs
Tue 6/9
11:10 am-10:51 pm
2 stops10h 41m
$478
Green BayDurango
GRB - DRO
GRBDRO
Green Bay Austin-Straubel
Fri 5/29
2:55 pm-12:04 am
2 stops10h 09m
Durango La Plata County
Fri 6/5
5:06 pm-9:13 am
2 stops15h 07m
$492
Showing 1-10 of 37 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
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
How far ahead should I book a flight from Green Bay to Colorado?
Booking 12 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.
What is the cheapest month to book a flight from Green Bay to Colorado?
Currently, June is the cheapest month in which you can book a flight from Green Bay to Colorado (average of $79). Flying from Green Bay to Colorado in April is currently the most expensive (average of $268). 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 April 29, 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?
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 April 29, 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
7.9
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Comfort
7.9
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Green Bay to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from 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 April 29, 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 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$188 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$228 | Average$303 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$229 | Average$344 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$333 | FlexibilityNo cancel fee | On-time71% |