$111+ Cheap flights from Colorado to New Hampshire
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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — MHT
Jul 23 — Jul 301
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to New Hampshire with Cheapflights
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Cheapest flights from Colorado to New HampshireExplore the most affordable flight options available from Colorado to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
Explore the most affordable flight options available from Colorado to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:00 am
COS
- BOS
1 stop7h 45m
American Airlines
Tue 8/187:30 am
BOS
- COS
1 stop9h 24m
American Airlines
Deal found 6/22![American Airlines logo]()
$221
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:15 am
COS
- BOS
2 stops8h 50m
Southwest
Wed 9/3010:05 am
BOS
- COS
1 stop8h 55m
Southwest
Deal found 6/19![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:15 am
COS
- BOS
2 stops10h 20m
Southwest
Tue 8/187:30 am
BOS
- COS
1 stop11h 30m
Southwest
Deal found 6/22![Southwest logo]()
$232
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/1310:12 am
COS
- BOS
1 stop7h 30m
American Airlines
Wed 8/197:30 am
BOS
- COS
1 stop9h 24m
American Airlines
Deal found 6/21![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/1111:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Wed 7/158:39 pm
BOS
- DEN
Nonstop4h 47m
United Airlines
Deal found 6/21![United Airlines logo]()
$245
This Cheapflightsfares deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:59 pm
DEN
- BOS
1 stop9h 48m
Frontier
Mon 8/2412:45 pm
BOS
- DEN
1 stop11h 25m
Frontier
Deal found 6/21![Frontier logo]()
$246
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:59 pm
DEN
- BOS
Nonstop4h 01m
United Airlines
Sun 10/48:17 pm
BOS
- DEN
Nonstop4h 36m
United Airlines
Deal found 6/23![United Airlines logo]()
$247
This CheapOair deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:59 pm
DEN
- BOS
1 stop9h 48m
Multiple Airlines
Mon 8/318:03 pm
BOS
- DEN
Nonstop4h 39m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$248
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 9/18:00 am
COS
- BOS
1 stop9h 42m
American Airlines
Sun 9/68:15 am
BOS
- COS
1 stop8h 39m
American Airlines
Deal found 6/18![American Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/1411:59 pm
DEN
- BOS
1 stop8h 36m
American Airlines
Wed 8/193:38 pm
BOS
- DEN
1 stop8h 36m
American Airlines
Deal found 6/20![American Airlines logo]()
$249
This Priceline deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:59 pm
DEN
- BOS
1 stop9h 48m
Multiple Airlines
Tue 9/85:01 am
BOS
- DEN
1 stop9h 56m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$250
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:55 pm
DEN
- BOS
Nonstop3h 55m
Southwest
Tue 7/215:50 am
BOS
- DEN
1 stop5h 55m
Southwest
Deal found 6/22![Southwest logo]()
$251
Best flights from Colorado to New HampshireDiscover carefully curated flight deals from Colorado to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
Discover carefully curated flight deals from Colorado to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:55 pm
DEN
- BOS
Nonstop3h 55m
Southwest
Tue 7/215:50 am
BOS
- DEN
1 stop5h 55m
Southwest
Deal found 6/18![Southwest logo]()
$249
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/1811:59 pm
DEN
- BOS
Nonstop4h 00m
United Airlines
Mon 9/217:02 pm
BOS
- DEN
1 stop6h 51m
United Airlines
Deal found 6/21![United Airlines logo]()
$257
This JetBlue deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:55 pm
DEN
- BOS
1 stop6h 50m
JetBlue
Mon 8/248:03 pm
BOS
- DEN
Nonstop4h 39m
JetBlue
Deal found 6/22![JetBlue logo]()
$269
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/2711:27 am
COS
- BOS
2 stops9h 20m
Delta
Mon 8/315:30 am
BOS
- COS
1 stop8h 45m
Delta
Deal found 6/21![Delta logo]()
$282
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/2411:55 pm
DEN
- ORH
1 stop14h 56m
American Airlines
Mon 7/275:16 pm
ORH
- DEN
1 stop7h 09m
American Airlines
Deal found 6/20![American Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:15 am
DEN
- BOS
1 stop7h 50m
Southwest
Thu 7/96:50 pm
BOS
- DEN
1 stop7h 05m
Southwest
Deal found 6/21![Southwest logo]()
$259
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:46 pm
DEN
- ORH
2 stops20h 03m
American Airlines
Thu 9/175:16 pm
ORH
- DEN
1 stop22h 23m
American Airlines
Deal found 6/22![American Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/1311:27 am
COS
- BOS
2 stops9h 20m
Delta
Wed 8/192:22 pm
BOS
- COS
2 stops9h 16m
Delta
Deal found 6/20![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:20 pm
COS
- BOS
1 stop6h 10m
Southwest
Wed 8/198:15 am
BOS
- COS
2 stops9h 45m
Southwest
Deal found 6/20![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/286:00 am
DEN
- BOS
1 stop6h 50m
United Airlines
Fri 8/287:23 pm
BOS
- DEN
1 stop7h 07m
United Airlines
Deal found 6/19![United Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/45:00 am
DEN
- ORH
2 stops9h 51m
American Airlines
Wed 7/85:16 pm
ORH
- DEN
1 stop7h 09m
American Airlines
Deal found 6/18![American Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 9/96:00 am
COS
- BOS
1 stop6h 57m
Delta
Fri 9/113:10 pm
BOS
- COS
1 stop6h 46m
Delta
Deal found 6/19![Delta logo]()
$298
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:55 pm
DEN
- BOS
1 stop9h 30m
Southwest
Sat 8/227:05 am
BOS
- DEN
2 stops8h 00m
Southwest
Deal found 6/22![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/75:40 pm
DEN
- BOS
Nonstop4h 04m
United Airlines
Tue 7/146:43 pm
BOS
- DEN
1 stop7h 05m
United Airlines
Deal found 6/19![United Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/2910:14 am
COS
- PWM
2 stops11h 33m
American Airlines
Tue 10/67:14 am
PWM
- COS
1 stop6h 23m
American Airlines
Deal found 6/21![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:40 pm
GJT
- BOS
2 stops9h 31m
United Airlines
Tue 8/253:10 pm
BOS
- GJT
1 stop7h 25m
United Airlines
Deal found 6/22![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 pm
DEN
- BOS
Nonstop4h 00m
Southwest
Sun 9/135:20 am
BOS
- DEN
Nonstop4h 20m
Southwest
Deal found 6/22![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/51:20 pm
COS
- PWM
2 stops9h 39m
Delta
Wed 8/126:05 am
PWM
- COS
1 stop8h 10m
Delta
Deal found 6/21![Delta logo]()
$342
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/1311:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Wed 7/158:39 pm
BOS
- DEN
Nonstop4h 47m
United Airlines
Deal found 6/21![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:00 pm
DEN
- BOS
Nonstop4h 05m
Southwest
Sun 10/45:35 am
BOS
- DEN
1 stop7h 10m
Southwest
Deal found 6/18![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:55 am
COS
- BOS
1 stop8h 04m
United Airlines
Wed 8/266:01 am
BOS
- COS
1 stop6h 32m
United Airlines
Deal found 6/22![United Airlines logo]()
$321
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/1712:58 pm
EGE
- BOS
1 stop9h 17m
American Airlines
Mon 9/217:00 am
BOS
- EGE
1 stop7h 17m
American Airlines
Deal found 6/20![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/102:10 pm
DEN
- PWM
1 stop7h 04m
Delta
Fri 7/176:59 pm
PWM
- DEN
1 stop7h 24m
Delta
Deal found 6/20![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/226:00 am
DEN
- BOS
1 stop6h 07m
United Airlines
Tue 9/226:50 pm
BOS
- DEN
1 stop7h 04m
United Airlines
Deal found 6/20![United Airlines logo]()
$321
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am
DEN
- ORH
1 stop7h 49m
American Airlines
Sun 9/275:16 pm
ORH
- DEN
1 stop7h 08m
American Airlines
Deal found 6/22![American Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:20 pm
COS
- BOS
1 stop6h 10m
Southwest
Mon 8/245:50 am
BOS
- COS
2 stops8h 45m
Southwest
Deal found 6/21![Southwest logo]()
$322
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:59 pm
DEN
- ORH
1 stop13h 05m
American Airlines
Sun 11/223:29 pm
ORH
- DEN
1 stop9h 34m
American Airlines
Deal found 6/22![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/79:39 am
DEN
- PWM
2 stops13h 20m
Delta
Fri 8/144:47 pm
PWM
- DEN
2 stops9h 49m
Delta
Deal found 6/21![Delta logo]()
$394
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:40 pm
DEN
- BOS
1 stop5h 45m
Southwest
Tue 7/75:50 am
BOS
- DEN
1 stop5h 55m
Southwest
Deal found 6/18![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/75:44 am
COS
- BOS
1 stop6h 23m
United Airlines
Sat 7/116:00 am
BOS
- COS
1 stop7h 09m
United Airlines
Deal found 6/20![United Airlines logo]()
$355
Last-minute flights from Colorado to New HampshireDiscover last-minute flight deals from Colorado to New Hampshire. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to New Hampshire. Data last updated June 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Wed 7/156:43 pm
BOS
- DEN
1 stop7h 05m
United Airlines
Deal found 6/22![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:55 pm
DEN
- BOS
Nonstop3h 55m
Southwest
Tue 7/215:50 am
BOS
- DEN
1 stop5h 55m
Southwest
Deal found 6/22![Southwest logo]()
$251
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/711:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Sat 7/116:43 pm
BOS
- DEN
1 stop7h 06m
United Airlines
Deal found 6/20![United Airlines logo]()
$253
This CheapOair deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
DEN
- BOS
1 stop9h 34m
Multiple Airlines
Wed 7/158:41 am
BOS
- DEN
1 stop7h 38m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/85:00 am
DEN
- BOS
1 stop6h 37m
American Airlines
Fri 7/105:52 pm
BOS
- DEN
1 stop7h 58m
American Airlines
Deal found 6/19![American Airlines logo]()
$252
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:55 pm
DEN
- BOS
1 stop8h 00m
American Airlines
Tue 7/146:01 am
BOS
- DEN
1 stop7h 55m
American Airlines
Deal found 6/23![American Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/1111:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Wed 7/158:39 pm
BOS
- DEN
Nonstop4h 47m
United Airlines
Deal found 6/21![United Airlines logo]()
$245
This Frontier deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:59 pm
DEN
- BOS
1 stop8h 58m
Frontier
Wed 7/2911:59 am
BOS
- DEN
1 stop12h 06m
Frontier
Deal found 6/21![Frontier logo]()
$248
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/135:40 pm
DEN
- BOS
Nonstop4h 04m
United Airlines
Tue 7/218:39 pm
BOS
- DEN
Nonstop4h 47m
United Airlines
Deal found 6/21![United Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:40 am
DEN
- BOS
2 stops8h 20m
Southwest
Tue 7/215:50 am
BOS
- DEN
1 stop5h 55m
Southwest
Deal found 6/18![Southwest logo]()
$254
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/2111:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Tue 7/286:43 pm
BOS
- DEN
1 stop7h 05m
United Airlines
Deal found 6/18![United Airlines logo]()
$250
This Cheapflightsfares deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:10 pm
DEN
- BOS
1 stop15h 59m
Frontier
Fri 7/3110:04 am
BOS
- DEN
1 stop24h 03m
Frontier
Deal found 6/21![Frontier logo]()
$246
One-way flights from Colorado to New HampshireSearch for one-way flight options from Colorado to New Hampshire. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
Search for one-way flight options from Colorado to New Hampshire. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:10 pm
COS
- BOS
1 stop5h 40m
Southwest
Deal found 6/19![Southwest logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:37 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Deal found 6/20![JetBlue logo]()
$128
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/2311:59 pm
DEN
- BOS
1 stop7h 20m
American Airlines
Deal found 6/20![American Airlines logo]()
$129
This Priceline deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:59 pm
DEN
- BOS
1 stop10h 06m
Frontier
Deal found 6/20![Frontier logo]()
$130
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/145:40 pm
DEN
- BOS
Nonstop4h 04m
United Airlines
Deal found 6/19![United Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:03 am
DEN
- BOS
1 stop27h 58m
Frontier
Deal found 6/22![Frontier logo]()
$133
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:40 am
DEN
- BOS
2 stops8h 20m
Southwest
Deal found 6/22![Southwest logo]()
$134
This CheapOair deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:03 am
DEN
- BOS
1 stop27h 58m
Frontier
Deal found 6/23![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
DEN
- BOS
1 stop23h 16m
Frontier
Deal found 6/20![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
DEN
- BOS
1 stop9h 48m
Frontier
Deal found 6/19![Frontier logo]()
$137
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/211:20 pm
DEN
- BOS
1 stop6h 53m
American Airlines
Deal found 6/19![American Airlines logo]()
$138
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:40 pm
COS
- BOS
1 stop9h 18m
Delta
Deal found 6/22![Delta logo]()
$139
Find flight deals from Colorado to New Hampshire
Keep the following information in mind while searching for Colorado to New Hampshire flight deals. Data was last updated June 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (American Airlines) |
One-way from | $111 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $419 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to New Hampshire 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 23, 2026.
Use the filters below to find and compare flights from Colorado to New Hampshire that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Tue 7/14
6:55 pm-12:50 am
Nonstop3h 55m
Boston Logan Intl
Tue 7/21
5:50 am-9:45 am
1 stop5h 55m
$249
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Fri 9/18
11:59 pm-5:59 am
Nonstop4h 00m
Boston Logan Intl
Mon 9/21
7:02 pm-11:53 pm
1 stop6h 51m
$257
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Tue 7/7
6:15 am-4:05 pm
1 stop7h 50m
Boston Logan Intl
Thu 7/9
6:50 pm-11:55 pm
1 stop7h 05m
$259
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Fri 8/21
11:55 pm-8:45 am
1 stop6h 50m
Boston Logan Intl
Mon 8/24
8:03 pm-10:42 pm
Nonstop4h 39m
$269
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Thu 8/13
4:20 pm-12:30 am
1 stop6h 10m
Boston Logan Intl
Wed 8/19
8:15 am-4:00 pm
2 stops9h 45m
$275
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Thu 8/27
11:27 am-10:47 pm
2 stops9h 20m
Boston Logan Intl
Mon 8/31
5:30 am-12:15 pm
1 stop8h 45m
$282
DenverWorcester
DEN - ORH
DENORH
Denver Intl
Fri 7/24
11:55 pm-4:51 pm
1 stop14h 56m
Worcester
Mon 7/27
5:16 pm-10:25 pm
1 stop7h 09m
$282
DenverWorcester
DEN - ORH
DENORH
Denver Intl
Thu 9/10
6:46 pm-4:49 pm
2 stops20h 03m
Worcester
Thu 9/17
5:16 pm-1:39 pm
1 stop22h 23m
$282
DenverWorcester
DEN - ORH
DENORH
Denver Intl
Sat 7/4
5:00 am-4:51 pm
2 stops9h 51m
Worcester
Wed 7/8
5:16 pm-10:25 pm
1 stop7h 09m
$282
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Sat 8/15
12:55 pm-12:25 am
1 stop9h 30m
Boston Logan Intl
Sat 8/22
7:05 am-1:05 pm
2 stops8h 00m
$282
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Colorado to New Hampshire
Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Colorado with our price prediction graph.
DEN-BOS
COS-BOS
EGE-BOS
DEN-PWM
DEN-ORH
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 Colorado to New Hampshire
USCO-USNH
DEN-BOS
COS-BOS
EGE-BOS
DEN-PWM
What is the cheapest month to book a flight from Colorado to New Hampshire?
Currently, January is the cheapest month in which you can book a flight from Colorado to New Hampshire (average of $109). Flying from Colorado to New Hampshire in May is currently the most expensive (average of $481). 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 Colorado to New Hampshire?
Reviews of airlines servicing New Hampshire
Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated June 23, 2026.
See what other customers who have flown with Southwest and American Airlines from Colorado to New Hampshire have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Colorado to New Hampshire. 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 Colorado to New Hampshire
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New Hampshire by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to New Hampshire by cabin class
Find flights from Colorado to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and New Hampshire flights
Browse other Colorado and New Hampshire flight options. Last updated on June 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from New Hampshire
Find the right flight back to Colorado after your stay in New Hampshire
Colorado to New Hampshire flights
Consider these flights traveling from Colorado to New Hampshire.
Top 2 airlines flying from Colorado to New Hampshire
Discover the top 2 airlines that operate flights from Colorado to New Hampshire. 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$489 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$483 | FlexibilityNo cancel fee | On-time71% |