$114+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — MHT
Apr 17 — Apr 241
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Colorado to New Hampshire 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 Colorado to New Hampshire
Cheapest
Best
Last-minute
One-way
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 March 18, 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 March 18, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:59 pm
DEN
- BOS
1 stop10h 06m
Frontier
Wed 5/66:00 am
BOS
- DEN
1 stop8h 09m
Frontier
Deal found 3/13![Frontier logo]()
$189
This Flysmarter deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:09 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Tue 4/77:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/16![JetBlue logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:31 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Mon 4/137:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/13![JetBlue logo]()
$202
This JetBlue deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Mon 3/3011:09 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Mon 4/67:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/16![JetBlue logo]()
$205
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:00 pm
DEN
- BOS
Nonstop3h 50m
Southwest
Wed 4/155:35 am
BOS
- DEN
Nonstop4h 30m
Southwest
Deal found 3/14![Southwest logo]()
$207
This Vliegwinkel deal was found by Cheapflights users on 3/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/271:35 pm
DEN
- BOS
Nonstop3h 54m
JetBlue
Fri 4/37:50 pm
BOS
- DEN
Nonstop4h 40m
JetBlue
Deal found 3/13![JetBlue logo]()
$208
This Cheapflightsfares deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:15 am
DEN
- BOS
1 stop21h 57m
Frontier
Sat 5/1612:01 pm
BOS
- DEN
1 stop12h 23m
Frontier
Deal found 3/15![Frontier logo]()
$209
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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.
Sun 4/1911:59 pm
DEN
- BOS
1 stop9h 26m
Frontier
Fri 4/2412:42 pm
BOS
- DEN
1 stop11h 52m
Frontier
Deal found 3/15![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Sat 5/24:36 pm
DEN
- BOS
1 stop13h 22m
Multiple Airlines
Fri 5/89:49 am
BOS
- DEN
1 stop25h 18m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 3/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:08 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Tue 5/197:31 pm
BOS
- DEN
Nonstop4h 42m
JetBlue
Deal found 3/14![JetBlue logo]()
$212
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/31:39 pm
COS
- BOS
1 stop6h 33m
American Airlines
Tue 4/74:21 pm
BOS
- COS
1 stop8h 04m
American Airlines
Deal found 3/16![American Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/91:39 pm
COS
- BOS
1 stop8h 25m
American Airlines
Wed 4/157:00 am
BOS
- COS
1 stop7h 49m
American Airlines
Deal found 3/17![American Airlines logo]()
$229
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 March 18, 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 March 18, 2026.
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:30 am
DEN
- BOS
1 stop7h 40m
Southwest
Wed 4/158:10 am
BOS
- DEN
2 stops9h 00m
Southwest
Deal found 3/14![Southwest logo]()
$257
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/85:41 am
COS
- BOS
2 stops9h 07m
American Airlines
Sat 4/115:54 pm
BOS
- COS
1 stop7h 38m
American Airlines
Deal found 3/15![American Airlines logo]()
$260
This JetBlue deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Tue 5/1211:59 pm
DEN
- BOS
1 stop8h 39m
JetBlue
Sat 5/167:31 pm
BOS
- DEN
Nonstop4h 42m
JetBlue
Deal found 3/16![JetBlue logo]()
$282
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/2812:31 pm
MTJ
- BOS
1 stop7h 25m
United Airlines
Sat 5/306:00 am
BOS
- MTJ
1 stop7h 43m
United Airlines
Deal found 3/16![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 3/14. 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.
Wed 7/1511:40 am
DEN
- BOS
Nonstop4h 10m
Delta
Tue 7/217:55 am
BOS
- DEN
Nonstop4h 45m
Delta
Deal found 3/14![Delta logo]()
$312
This Sun Country Air deal was found by Cheapflights users on 3/14. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:03 pm
DEN
- PWM
1 stop15h 16m
Sun Country Air
Fri 7/2412:40 pm
PWM
- DEN
1 stop22h 37m
Sun Country Air
Deal found 3/14![Sun Country Air logo]()
$517
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:35 am
DEN
- BOS
2 stops8h 15m
Southwest
Sat 5/169:25 am
BOS
- DEN
1 stop8h 10m
Southwest
Deal found 3/16![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 5/291:53 pm
DEN
- PWM
1 stop7h 58m
United Airlines
Mon 6/87:16 pm
PWM
- DEN
1 stop7h 14m
United Airlines
Deal found 3/13![United Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/296:00 am
GJT
- BOS
1 stop7h 30m
American Airlines
Wed 5/62:02 pm
BOS
- GJT
1 stop9h 51m
American Airlines
Deal found 3/16![American Airlines logo]()
$311
This Southwest deal was found by Cheapflights users on 3/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:20 pm
COS
- BOS
1 stop5h 30m
Southwest
Wed 4/155:35 am
BOS
- COS
1 stop6h 10m
Southwest
Deal found 3/13![Southwest logo]()
$284
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 9/91:40 pm
COS
- PWM
1 stop6h 53m
Delta
Sat 9/126:00 am
PWM
- COS
1 stop8h 48m
Delta
Deal found 3/15![Delta logo]()
$320
This JetBlue deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Tue 4/1411:59 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Wed 4/158:20 pm
BOS
- DEN
Nonstop4h 44m
JetBlue
Deal found 3/16![JetBlue logo]()
$331
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/712:42 pm
MTJ
- BOS
1 stop9h 22m
American Airlines
Tue 5/126:00 am
BOS
- MTJ
1 stop7h 58m
American Airlines
Deal found 3/16![American Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/15:20 pm
COS
- BOS
1 stop5h 30m
Southwest
Sun 5/105:15 am
BOS
- COS
1 stop6h 05m
Southwest
Deal found 3/16![Southwest logo]()
$295
This JetBlue deal was found by Cheapflights users on 3/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/211:59 pm
DEN
- BOS
1 stop8h 49m
JetBlue
Mon 4/67:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/18![JetBlue logo]()
$338
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 3/311:33 pm
COS
- BOS
1 stop8h 26m
United Airlines
Sat 4/43:05 pm
BOS
- COS
1 stop8h 52m
United Airlines
Deal found 3/16![United Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:21 pm
MTJ
- BOS
1 stop6h 49m
American Airlines
Fri 8/216:45 am
BOS
- MTJ
1 stop8h 49m
American Airlines
Deal found 3/17![American Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:35 am
DEN
- BOS
1 stop8h 35m
Southwest
Wed 4/226:20 am
BOS
- DEN
2 stops9h 45m
Southwest
Deal found 3/14![Southwest logo]()
$299
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/611:35 am
DEN
- BOS
Nonstop3h 57m
Delta
Thu 4/97:30 am
BOS
- DEN
Nonstop4h 54m
Delta
Deal found 3/15![Delta logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:25 pm
COS
- BOS
1 stop6h 34m
United Airlines
Sat 5/96:00 am
BOS
- COS
1 stop6h 47m
United Airlines
Deal found 3/14![United Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 9/98:00 am
COS
- PWM
2 stops10h 23m
American Airlines
Sat 9/121:02 pm
PWM
- COS
2 stops11h 55m
American Airlines
Deal found 3/16![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 8/51:40 pm
COS
- PWM
1 stop8h 13m
Delta
Wed 8/121:35 pm
PWM
- COS
1 stop9h 40m
Delta
Deal found 3/16![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 8/283:23 pm
MTJ
- BOS
1 stop6h 19m
United Airlines
Mon 8/319:45 am
BOS
- MTJ
1 stop6h 42m
United Airlines
Deal found 3/13![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 5/145:20 pm
COS
- BOS
1 stop5h 30m
Southwest
Wed 5/275:35 am
BOS
- COS
1 stop6h 10m
Southwest
Deal found 3/15![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 3/13. 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 4/298:00 am
EGE
- BOS
2 stops12h 54m
American Airlines
Thu 5/78:07 am
BOS
- EGE
2 stops13h 02m
American Airlines
Deal found 3/13![American Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/11:40 pm
MTJ
- BOS
1 stop8h 19m
United Airlines
Sun 4/56:00 am
BOS
- MTJ
2 stops8h 41m
United Airlines
Deal found 3/17![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 3/13. 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.
Fri 4/107:45 am
GJT
- BOS
1 stop6h 47m
Delta
Sat 4/111:10 pm
BOS
- GJT
1 stop7h 23m
Delta
Deal found 3/13![Delta logo]()
$439
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:39 pm
MTJ
- BOS
1 stop6h 41m
American Airlines
Sat 9/57:15 am
BOS
- MTJ
1 stop8h 32m
American Airlines
Deal found 3/14![American Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/511:43 am
COS
- PWM
1 stop7h 36m
United Airlines
Wed 5/66:00 am
PWM
- COS
1 stop6h 47m
United Airlines
Deal found 3/17![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/18:00 am
MTJ
- BOS
2 stops12h 10m
Southwest
Sun 4/55:35 am
BOS
- MTJ
2 stops8h 00m
Southwest
Deal found 3/17![Southwest logo]()
$369
Last-minute flights from Colorado to New HampshireDiscover last-minute flight deals from Colorado to New Hampshire. Data last updated March 18, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to New Hampshire. Data last updated March 18, 2026 and is based on user searches.
This Vliegwinkel deal was found by Cheapflights users on 3/13. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/271:35 pm
DEN
- BOS
Nonstop3h 54m
JetBlue
Fri 4/37:50 pm
BOS
- DEN
Nonstop4h 40m
JetBlue
Deal found 3/13![JetBlue logo]()
$208
This flygcity.se deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:09 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Tue 4/77:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/16![JetBlue logo]()
$189
This JetBlue deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Mon 3/3011:09 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Mon 4/67:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/16![JetBlue logo]()
$205
This Expedia deal was found by Cheapflights users on 3/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:25 pm
DEN
- BOS
Nonstop3h 52m
Multiple Airlines
Tue 4/712:42 pm
BOS
- DEN
1 stop12h 22m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$214
This American Airlines deal was found by Cheapflights users on 3/13. 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 4/11:39 pm
COS
- BOS
1 stop6h 33m
American Airlines
Wed 4/85:54 pm
BOS
- COS
1 stop7h 38m
American Airlines
Deal found 3/13![American Airlines logo]()
$240
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/31:39 pm
COS
- BOS
1 stop6h 33m
American Airlines
Tue 4/74:21 pm
BOS
- COS
1 stop8h 04m
American Airlines
Deal found 3/16![American Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/91:39 pm
COS
- BOS
1 stop8h 25m
American Airlines
Wed 4/157:00 am
BOS
- COS
1 stop7h 49m
American Airlines
Deal found 3/17![American Airlines logo]()
$229
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1011:31 pm
DEN
- BOS
Nonstop3h 48m
JetBlue
Mon 4/137:50 pm
BOS
- DEN
Nonstop4h 46m
JetBlue
Deal found 3/13![JetBlue logo]()
$202
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:00 pm
DEN
- BOS
Nonstop3h 50m
Southwest
Wed 4/155:35 am
BOS
- DEN
Nonstop4h 30m
Southwest
Deal found 3/14![Southwest logo]()
$207
This Expedia deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:31 pm
DEN
- BOS
Nonstop3h 48m
Multiple Airlines
Wed 4/156:00 am
BOS
- DEN
1 stop8h 09m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Sat 4/187:35 am
DEN
- BOS
1 stop13h 50m
Multiple Airlines
Mon 4/205:45 am
BOS
- DEN
1 stop30h 27m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$211
This Frontier deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Sun 4/1911:59 pm
DEN
- BOS
1 stop9h 26m
Frontier
Wed 4/226:00 am
BOS
- DEN
1 stop8h 09m
Frontier
Deal found 3/17![Frontier logo]()
$210
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 March 18, 2026.
Search for one-way flight options from Colorado to New Hampshire. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/511:35 am
DEN
- BOS
Nonstop3h 57m
Delta
Deal found 3/16![Delta logo]()
$114
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:59 pm
DEN
- BOS
1 stop9h 46m
Frontier
Deal found 3/13![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:31 am
DEN
- BOS
1 stop13h 51m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$116
This Super.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:08 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Deal found 3/15![JetBlue logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/711:49 pm
DEN
- BOS
2 stops33h 58m
Frontier
Deal found 3/15![Frontier logo]()
$118
This Southwest deal was found by Cheapflights users on 3/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:05 pm
COS
- BOS
1 stop6h 00m
Southwest
Deal found 3/13![Southwest logo]()
$119
This JetBlue deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Sat 5/1611:08 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Deal found 3/16![JetBlue logo]()
$119
This Super.com deal was found by Cheapflights users on 3/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:15 pm
DEN
- BOS
Nonstop3h 54m
JetBlue
Deal found 3/13![JetBlue logo]()
$121
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:00 am
COS
- BOS
1 stop7h 13m
American Airlines
Deal found 3/14![American Airlines logo]()
$122
This Super.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:08 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Deal found 3/16![JetBlue logo]()
$122
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:40 pm
COS
- BOS
1 stop9h 25m
Southwest
Deal found 3/14![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 3/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:00 pm
DEN
- BOS
Nonstop3h 50m
Southwest
Deal found 3/13![Southwest logo]()
$124
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 March 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Cheapflightsfares) |
One-way from | $114 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $337 |
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 March 18, 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
Sat 4/11
5:30 am-3:10 pm
1 stop7h 40m
Boston Logan Intl
Wed 4/15
8:10 am-3:10 pm
2 stops9h 00m
$257
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Wed 4/8
5:41 am-4:48 pm
2 stops9h 07m
Boston Logan Intl
Sat 4/11
5:54 pm-11:32 pm
1 stop7h 38m
$260
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Mon 5/11
11:35 am-9:50 pm
2 stops8h 15m
Boston Logan Intl
Sat 5/16
9:25 am-3:35 pm
1 stop8h 10m
$267
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Tue 5/12
11:59 pm-10:38 am
1 stop8h 39m
Boston Logan Intl
Sat 5/16
7:31 pm-10:13 pm
Nonstop4h 42m
$282
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Thu 4/9
5:20 pm-12:50 am
1 stop5h 30m
Boston Logan Intl
Wed 4/15
5:35 am-9:45 am
1 stop6h 10m
$284
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Fri 5/1
5:20 pm-12:50 am
1 stop5h 30m
Boston Logan Intl
Sun 5/10
5:15 am-9:20 am
1 stop6h 05m
$295
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Thu 4/16
6:35 am-5:10 pm
1 stop8h 35m
Boston Logan Intl
Wed 4/22
6:20 am-2:05 pm
2 stops9h 45m
$299
MontroseBoston
MTJ - BOS
MTJBOS
Montrose County
Thu 5/28
12:31 pm-9:56 pm
1 stop7h 25m
Boston Logan Intl
Sat 5/30
6:00 am-11:43 am
1 stop7h 43m
$309
DenverPortland
DEN - PWM
DENPWM
Denver Intl
Fri 5/29
1:53 pm-11:51 pm
1 stop7h 58m
Portland
Mon 6/8
7:16 pm-12:30 am
1 stop7h 14m
$309
Grand JunctionBoston
GJT - BOS
GJTBOS
Grand Junction Regnl
Wed 4/29
6:00 am-3:30 pm
1 stop7h 30m
Boston Logan Intl
Wed 5/6
2:02 pm-9:53 pm
1 stop9h 51m
$311
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
MTJ-BOS
DEN-PWM
GJT-BOS
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
MTJ-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 $165). Flying from Colorado to New Hampshire in December is currently the most expensive (average of $399). 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.
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 March 18, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican 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.
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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.
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
Return Flight Options
Top destinations
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 March 18, 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 3 airlines flying from Colorado to New Hampshire
Discover the top 3 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 March 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$686 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$264 | Average$443 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$306 | Average$481 | FlexibilityNo cancel fee | On-time69% |