$96+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — MHT
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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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
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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
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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 May 4, 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 May 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Wed 6/106:30 am
DEN
- BOS
1 stop16h 57m
Frontier
Tue 6/166:00 am
BOS
- DEN
1 stop18h 16m
Frontier
Deal found 4/30![Frontier logo]()
$204
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Tue 5/1911:54 pm
DEN
- BOS
1 stop6h 50m
Frontier
Wed 5/276:00 am
BOS
- DEN
1 stop10h 04m
Frontier
Deal found 4/30![Frontier logo]()
$205
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Thu 5/1410:00 am
DEN
- BOS
1 stop13h 24m
Frontier
Sat 5/2312:01 pm
BOS
- DEN
1 stop12h 23m
Frontier
Deal found 4/30![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Mon 6/111:54 pm
DEN
- BOS
1 stop23h 30m
Frontier
Wed 6/106:00 am
BOS
- DEN
1 stop18h 16m
Frontier
Deal found 4/30![Frontier logo]()
$207
This lol.travel deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:34 pm
DEN
- BOS
Nonstop3h 55m
JetBlue
Wed 6/36:45 pm
BOS
- DEN
Nonstop4h 52m
JetBlue
Deal found 5/2![JetBlue logo]()
$208
This Cheapflightsfares deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 7/89:58 am
DEN
- BOS
1 stop13h 25m
Frontier
Wed 7/1512:04 pm
BOS
- DEN
1 stop12h 01m
Frontier
Deal found 4/30![Frontier logo]()
$209
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/2910:00 am
DEN
- BOS
1 stop13h 24m
Frontier
Fri 6/58:44 am
BOS
- DEN
1 stop7h 48m
Frontier
Deal found 4/30![Frontier logo]()
$210
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/118:00 am
COS
- BOS
1 stop9h 42m
American Airlines
Tue 8/186:10 am
BOS
- COS
1 stop8h 35m
American Airlines
Deal found 5/3![American Airlines logo]()
$211
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 6/26:38 am
DEN
- BOS
1 stop7h 18m
American Airlines
Tue 6/910:14 am
BOS
- DEN
1 stop6h 52m
American Airlines
Deal found 4/30![American Airlines logo]()
$211
This JetBlue deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/1911:28 pm
DEN
- BOS
Nonstop3h 54m
JetBlue
Thu 5/286:45 pm
BOS
- DEN
Nonstop4h 52m
JetBlue
Deal found 5/1![JetBlue logo]()
$212
This Cheapflightsfares 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 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
Wed 8/197:00 am
BOS
- DEN
Nonstop4h 34m
JetBlue
Deal found 4/29![JetBlue logo]()
$214
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Sun 5/316:03 am
DEN
- BOS
1 stop27h 03m
Frontier
Wed 6/312:01 pm
BOS
- DEN
1 stop12h 23m
Frontier
Deal found 5/2![Frontier logo]()
$215
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 May 4, 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 May 4, 2026.
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:59 pm
DEN
- BOS
Nonstop4h 00m
United Airlines
Sat 9/128:10 pm
BOS
- DEN
Nonstop4h 35m
United Airlines
Deal found 5/3![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 10/146:00 am
COS
- BOS
1 stop7h 03m
Delta
Sat 10/314:20 pm
BOS
- COS
1 stop7h 01m
Delta
Deal found 5/3![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/197:05 pm
DEN
- BOS
Nonstop3h 55m
Southwest
Mon 6/227:55 am
BOS
- DEN
1 stop8h 30m
Southwest
Deal found 5/2![Southwest logo]()
$297
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/222:21 pm
MTJ
- BOS
1 stop7h 43m
American Airlines
Mon 5/257:00 am
BOS
- MTJ
1 stop8h 30m
American Airlines
Deal found 4/30![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/291:40 pm
COS
- PWM
1 stop6h 53m
Delta
Wed 9/91:35 pm
PWM
- COS
1 stop9h 40m
Delta
Deal found 5/1![Delta logo]()
$290
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm
DEN
- BOS
Nonstop4h 00m
United Airlines
Wed 9/307:18 am
BOS
- DEN
1 stop11h 01m
United Airlines
Deal found 4/29![United Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/231:25 pm
DEN
- BOS
2 stops8h 15m
Southwest
Wed 6/32:30 pm
BOS
- DEN
1 stop8h 25m
Southwest
Deal found 5/2![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 9/1211:40 am
DEN
- BOS
Nonstop4h 10m
Delta
Wed 10/77:55 am
BOS
- DEN
Nonstop4h 53m
Delta
Deal found 4/30![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 6/52:12 pm
EGE
- BOS
1 stop6h 57m
American Airlines
Sun 6/76:00 am
BOS
- EGE
1 stop9h 31m
American Airlines
Deal found 5/3![American Airlines logo]()
$329
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:55 pm
DEN
- BOS
Nonstop3h 50m
Southwest
Wed 7/85:00 am
BOS
- DEN
Nonstop4h 25m
Southwest
Deal found 4/29![Southwest logo]()
$307
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:40 pm
COS
- BOS
1 stop9h 26m
Delta
Tue 8/253:10 pm
BOS
- COS
1 stop8h 05m
Delta
Deal found 4/29![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/2512:51 pm
COS
- BOS
2 stops8h 29m
United Airlines
Wed 8/262:19 pm
BOS
- COS
2 stops11h 30m
United Airlines
Deal found 5/3![United Airlines logo]()
$337
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/2710:30 am
EGE
- BOS
2 stops10h 00m
American Airlines
Tue 9/110:35 am
BOS
- EGE
2 stops10h 07m
American Airlines
Deal found 5/4![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/76:25 am
DEN
- BOS
1 stop8h 40m
Southwest
Thu 9/108:40 am
BOS
- DEN
1 stop9h 20m
Southwest
Deal found 5/1![Southwest logo]()
$332
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 9/298:00 am
COS
- PWM
2 stops10h 23m
American Airlines
Tue 10/61:05 pm
PWM
- COS
2 stops11h 52m
American Airlines
Deal found 5/3![American Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 9/2611:40 am
DEN
- BOS
Nonstop4h 10m
Delta
Tue 9/297:55 am
BOS
- DEN
Nonstop4h 45m
Delta
Deal found 5/2![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 5/1711:59 pm
DEN
- BOS
Nonstop4h 05m
United Airlines
Fri 5/228:39 pm
BOS
- DEN
Nonstop4h 47m
United Airlines
Deal found 5/3![United Airlines logo]()
$347
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:45 am
DEN
- BOS
2 stops7h 35m
Southwest
Sun 6/75:15 am
BOS
- DEN
Nonstop4h 25m
Southwest
Deal found 4/29![Southwest logo]()
$337
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:29 am
COS
- PWM
2 stops11h 30m
United Airlines
Wed 8/266:00 am
PWM
- COS
1 stop6h 59m
United Airlines
Deal found 4/29![United Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/105:15 am
DEN
- BOS
1 stop8h 30m
Southwest
Sun 9/135:20 am
BOS
- DEN
Nonstop4h 20m
Southwest
Deal found 5/1![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/21:40 pm
COS
- PWM
1 stop6h 53m
Delta
Fri 9/111:35 pm
PWM
- COS
1 stop9h 40m
Delta
Deal found 5/1![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/15:30 am
COS
- PWM
2 stops11h 49m
United Airlines
Wed 9/96:00 am
PWM
- COS
1 stop6h 59m
United Airlines
Deal found 5/1![United Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/222:15 pm
DEN
- BOS
1 stop7h 40m
Southwest
Sun 5/315:15 am
BOS
- DEN
Nonstop4h 30m
Southwest
Deal found 5/1![Southwest logo]()
$362
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/301:40 pm
COS
- PWM
1 stop6h 53m
Delta
Wed 9/91:35 pm
PWM
- COS
1 stop9h 40m
Delta
Deal found 5/1![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/191:43 pm
MTJ
- BOS
1 stop8h 16m
United Airlines
Sat 5/233:10 pm
BOS
- MTJ
1 stop7h 00m
United Airlines
Deal found 4/30![United Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 8/67:50 am
EGE
- BOS
1 stop9h 52m
American Airlines
Wed 8/126:00 am
BOS
- EGE
2 stops9h 28m
American Airlines
Deal found 4/30![American Airlines logo]()
$466
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:40 pm
DEN
- MHT
1 stop5h 30m
Southwest
Wed 9/235:35 am
MHT
- DEN
1 stop7h 50m
Southwest
Deal found 4/29![Southwest logo]()
$375
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/188:00 am
EGE
- BOS
1 stop7h 03m
American Airlines
Mon 5/258:00 am
BOS
- EGE
1 stop7h 31m
American Airlines
Deal found 5/2![American Airlines logo]()
$474
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:05 am
ASE
- BOS
2 stops9h 56m
Delta
Tue 6/25:35 am
BOS
- ASE
1 stop7h 44m
Delta
Deal found 4/29![Delta logo]()
$398
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/163:25 pm
COS
- BOS
1 stop6h 34m
United Airlines
Wed 5/209:15 am
BOS
- COS
1 stop7h 09m
United Airlines
Deal found 5/2![United Airlines logo]()
$411
Last-minute flights from Colorado to New HampshireDiscover last-minute flight deals from Colorado to New Hampshire. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to New Hampshire. Data last updated May 4, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Thu 5/1410:00 am
DEN
- BOS
1 stop13h 24m
Frontier
Sat 5/2312:01 pm
BOS
- DEN
1 stop12h 23m
Frontier
Deal found 4/30![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Tue 5/1911:54 pm
DEN
- BOS
1 stop6h 50m
Frontier
Wed 5/276:00 am
BOS
- DEN
1 stop10h 04m
Frontier
Deal found 4/30![Frontier logo]()
$205
This JetBlue deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/1911:28 pm
DEN
- BOS
Nonstop3h 54m
JetBlue
Thu 5/286:45 pm
BOS
- DEN
Nonstop4h 52m
JetBlue
Deal found 5/1![JetBlue logo]()
$212
This lol.travel deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:34 pm
DEN
- BOS
Nonstop3h 55m
JetBlue
Wed 6/36:45 pm
BOS
- DEN
Nonstop4h 52m
JetBlue
Deal found 5/2![JetBlue logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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.
Thu 5/286:03 am
DEN
- BOS
1 stop27h 03m
Frontier
Mon 6/112:01 pm
BOS
- DEN
1 stop23h 04m
Frontier
Deal found 5/1![Frontier logo]()
$216
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/2910:00 am
DEN
- BOS
1 stop13h 24m
Frontier
Fri 6/58:44 am
BOS
- DEN
1 stop7h 48m
Frontier
Deal found 4/30![Frontier logo]()
$210
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/2910:34 pm
DEN
- BOS
Nonstop3h 55m
JetBlue
Tue 6/26:45 pm
BOS
- DEN
Nonstop4h 52m
JetBlue
Deal found 5/1![JetBlue logo]()
$214
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Sun 5/316:03 am
DEN
- BOS
1 stop27h 03m
Frontier
Wed 6/312:01 pm
BOS
- DEN
1 stop12h 23m
Frontier
Deal found 5/2![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Mon 6/111:54 pm
DEN
- BOS
1 stop23h 30m
Frontier
Wed 6/106:00 am
BOS
- DEN
1 stop18h 16m
Frontier
Deal found 4/30![Frontier logo]()
$207
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 6/26:38 am
DEN
- BOS
1 stop7h 18m
American Airlines
Tue 6/910:14 am
BOS
- DEN
1 stop6h 52m
American Airlines
Deal found 4/30![American Airlines logo]()
$211
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 6/87:05 pm
DEN
- BOS
Nonstop3h 55m
Southwest
Wed 6/105:00 am
BOS
- DEN
Nonstop4h 25m
Southwest
Deal found 4/30![Southwest logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Wed 6/106:30 am
DEN
- BOS
1 stop16h 57m
Frontier
Tue 6/166:00 am
BOS
- DEN
1 stop18h 16m
Frontier
Deal found 4/30![Frontier logo]()
$204
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 May 4, 2026.
Search for one-way flight options from Colorado to New Hampshire. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 9/158:00 am
COS
- BOS
1 stop9h 42m
American Airlines
Deal found 5/3![American Airlines logo]()
$96
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2112:11 pm
COS
- BOS
1 stop9h 10m
United Airlines
Deal found 5/1![United Airlines logo]()
$114
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 6/211:59 pm
DEN
- BOS
Nonstop3h 59m
United Airlines
Deal found 5/3![United Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/169:58 am
DEN
- BOS
1 stop19h 54m
Frontier
Deal found 5/1![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Mon 6/16:03 am
DEN
- BOS
2 stops23h 46m
Frontier
Deal found 4/30![Frontier logo]()
$121
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/510:34 pm
DEN
- BOS
Nonstop3h 53m
JetBlue
Deal found 4/29![JetBlue logo]()
$122
This Super.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/1211:54 pm
DEN
- BOS
1 stop6h 50m
Frontier
Deal found 4/30![Frontier logo]()
$123
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 9/118:00 am
COS
- BOS
1 stop9h 42m
American Airlines
Deal found 5/3![American Airlines logo]()
$124
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/236:00 am
DEN
- BOS
1 stop7h 23m
United Airlines
Deal found 5/1![United Airlines logo]()
$124
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Sat 7/189:58 am
DEN
- BOS
1 stop13h 25m
Frontier
Deal found 4/30![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/26:30 am
DEN
- BOS
2 stops26h 36m
Frontier
Deal found 5/4![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/611:54 pm
DEN
- BOS
1 stop29h 55m
Frontier
Deal found 5/4![Frontier logo]()
$127
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 May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $204 (Kiwi.com) |
One-way from | $96 (American Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $338 |
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 May 4, 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 9/5
11:59 pm-5:59 am
Nonstop4h 00m
Boston Logan Intl
Sat 9/12
8:10 pm-10:45 pm
Nonstop4h 35m
$247
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Wed 10/14
6:00 am-3:03 pm
1 stop7h 03m
Boston Logan Intl
Sat 10/31
4:20 pm-9:21 pm
1 stop7h 01m
$277
Colorado SpringsPortland
COS - PWM
COSPWM
Colorado Springs
Sat 8/29
1:40 pm-10:33 pm
1 stop6h 53m
Portland
Wed 9/9
1:35 pm-9:15 pm
1 stop9h 40m
$290
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Fri 6/19
7:05 pm-1:00 am
Nonstop3h 55m
Boston Logan Intl
Mon 6/22
7:55 am-2:25 pm
1 stop8h 30m
$297
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Tue 9/1
11:59 pm-5:59 am
Nonstop4h 00m
Boston Logan Intl
Wed 9/30
7:18 am-4:19 pm
1 stop11h 01m
$297
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Sat 9/12
11:40 am-5:50 pm
Nonstop4h 10m
Boston Logan Intl
Wed 10/7
7:55 am-10:48 am
Nonstop4h 53m
$297
Colorado SpringsBoston
COS - BOS
COSBOS
Colorado Springs
Thu 8/20
1:40 pm-1:06 am
1 stop9h 26m
Boston Logan Intl
Tue 8/25
3:10 pm-9:15 pm
1 stop8h 05m
$302
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Sat 5/23
1:25 pm-11:40 pm
2 stops8h 15m
Boston Logan Intl
Wed 6/3
2:30 pm-8:55 pm
1 stop8h 25m
$304
Quickest round-trip
DenverBoston
DEN - BOS
DENBOS
Denver Intl
Wed 7/1
6:55 pm-12:45 am
Nonstop3h 50m
Boston Logan Intl
Wed 7/8
5:00 am-7:25 am
Nonstop4h 25m
$307
MontroseBoston
MTJ - BOS
MTJBOS
Montrose County
Fri 5/22
2:21 pm-12:04 am
1 stop7h 43m
Boston Logan Intl
Mon 5/25
7:00 am-1:30 pm
1 stop8h 30m
$309
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
COS-PWM
EGE-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
COS-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 December is currently the most expensive (average of $386). 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 May 4, 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.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 May 4, 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 May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$479 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$298 | Average$412 | FlexibilityNo cancel fee | On-time69% |