$125+ Cheap flights from New Hampshire to Seattle (SEA)
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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
jun. 17 — jun. 241
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from New Hampshire to Seattle 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 New Hampshire to Seattle
Keep the following information in mind while searching for New Hampshire to Seattle flight deals. Data was last updated junio 12, 2025.
Round-trip from | $197 (JetBlue) |
|---|---|
One-way from | $129 (JetBlue) |
Popular in | August |
Cheapest in | January |
Average price | $416 |
Find flight deals from New Hampshire to Seattle
Cheapest flights from New Hampshire to SeattleExplore the most affordable flight options available from New Hampshire to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
Explore the most affordable flight options available from New Hampshire to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/246:35 pmBOS - SEA
Nonstop6h 38mDelta
mié. 10/110:00 pmSEA - BOS
Nonstop5h 34mDelta
Deal found 6/10![Delta logo]()
$197
This JetBlue deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/137:00 amBOS - SEA
Nonstop6h 19mJetBlue
mié. 9/2411:30 amSEA - BOS
Nonstop5h 33mJetBlue
Deal found 6/10![JetBlue logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/246:40 pmBOS - SEA
Nonstop6h 10mAlaska Airlines
jue. 9/253:59 pmSEA - BOS
Nonstop5h 24mAlaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/135:29 amBOS - SEA
1 stop11h 46mAmerican Airlines
mié. 8/206:34 amSEA - BOS
1 stop9h 07mAmerican Airlines
Deal found 6/11![American Airlines logo]()
$220
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/267:45 amBOS - SEA
1 stop12h 06mHawaiian Airlines
mar. 9/93:59 pmSEA - BOS
Nonstop5h 24mHawaiian Airlines
Deal found 6/11![Hawaiian Airlines logo]()
$232
This JetBlue deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/232:17 pmPWM - SEA
1 stop10h 53mJetBlue
lun. 9/2911:40 pmSEA - PWM
1 stop10h 42mJetBlue
Deal found 6/10![JetBlue logo]()
$261
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/3011:35 amBOS - SEA
1 stop14h 40mSouthwest
mar. 8/55:15 amSEA - BOS
1 stop12h 30mSouthwest
Deal found 6/11![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/234:55 pmPWM - SEA
1 stop8h 30mDelta
dom. 9/2812:40 amSEA - PWM
1 stop9h 14mDelta
Deal found 6/10![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2212:21 pmMHT - SEA
1 stop14h 29mAmerican Airlines
sáb. 10/251:56 pmSEA - MHT
1 stop7h 47mAmerican Airlines
Deal found 6/10![American Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/97:12 pmBOS - SEA
1 stop8h 44mUnited Airlines
mié. 7/237:00 pmSEA - BOS
1 stop8h 01mUnited Airlines
Deal found 6/11![United Airlines logo]()
$306
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/282:48 pmPWM - SEA
1 stop11h 07mAmerican Airlines
sáb. 9/65:26 amSEA - PWM
1 stop9h 19mAmerican Airlines
Deal found 6/11![American Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/229:40 amMHT - SEA
2 stops12h 09mUnited Airlines
sáb. 10/258:42 amSEA - MHT
2 stops12h 17mUnited Airlines
Deal found 6/10![United Airlines logo]()
$316
Cheapflights Fare Finder
Customize your flight search to find flights from New Hampshire to Seattle 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 junio 12, 2025.
Use the filters below to find and compare flights from New Hampshire to Seattle that are best for you.
Fly from
New Hampshire
Fly to
Seattle
Route
Depart
Return
Price
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mié. 9/24
11:00 am-2:31 pm
Nonstop6h 31m
Seattle/Tacoma Intl
mar. 9/30
3:20 pm-11:44 pm
Nonstop5h 24m
$197
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
sáb. 9/13
7:00 am-10:19 am
Nonstop6h 19m
Seattle/Tacoma Intl
mié. 9/24
11:30 am-8:03 pm
Nonstop5h 33m
$207
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mié. 8/13
5:29 am-2:15 pm
1 stop11h 46m
Seattle/Tacoma Intl
mié. 8/20
6:34 am-6:41 pm
1 stop9h 07m
$220
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mar. 8/26
7:20 am-10:33 am
Nonstop6h 13m
Seattle/Tacoma Intl
mié. 8/27
3:59 pm-12:23 am
Nonstop5h 24m
$222
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mar. 8/26
7:45 am-4:51 pm
1 stop12h 06m
Seattle/Tacoma Intl
mar. 9/9
3:59 pm-12:23 am
Nonstop5h 24m
$232
PortlandSeattle
PWM - SEA
PWMSEA
Portland
jue. 9/4
2:17 pm-10:10 pm
1 stop10h 53m
Seattle/Tacoma Intl
lun. 9/8
11:40 pm-1:22 pm
1 stop10h 42m
$285
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mié. 7/30
11:35 am-11:15 pm
1 stop14h 40m
Seattle/Tacoma Intl
mar. 8/5
5:15 am-8:45 pm
1 stop12h 30m
$293
PortlandSeattle
PWM - SEA
PWMSEA
Portland
jue. 9/4
2:14 pm-10:20 pm
2 stops11h 06m
Seattle/Tacoma Intl
lun. 9/8
10:55 pm-10:09 am
1 stop8h 14m
$302
ManchesterSeattle
MHT - SEA
MHTSEA
Manchester
mié. 10/22
12:21 pm-11:50 pm
1 stop14h 29m
Seattle/Tacoma Intl
sáb. 10/25
1:56 pm-12:43 am
1 stop7h 47m
$305
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
mié. 7/9
7:12 pm-12:56 am
1 stop8h 44m
Seattle/Tacoma Intl
mié. 7/23
7:00 pm-6:01 am
1 stop8h 01m
$306
Showing 1-10 of 46 results
Best time to book a flight from New Hampshire to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from New Hampshire with our price prediction graph.
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 New Hampshire to Seattle
What is the cheapest month to book a flight from New Hampshire to Seattle?
Currently, January is the cheapest month in which you can book a flight from New Hampshire to Seattle (average of $238). Flying from New Hampshire to Seattle in July is currently the most expensive (average of $391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from NH to SEA?
Find hourly flight availability from New Hampshire to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Hampshire to Seattle as you normally would.
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated junio 12, 2025.
Read through reviews of airlines operating flights from New Hampshire to Seattle, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Related info for your journey
Find useful and relevant information for your journey from New Hampshire to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near New Hampshire?
Book flights to New Hampshire if you plan to visit one of these locationsSeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah
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 for New Hampshire to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from New Hampshire to Seattle
Discover the top 3 airlines that operate flights from New Hampshire to Seattle. 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 junio 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$342 | Average$422 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$376 | Average$587 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$416 | Average$498 | FlexibilityNo cancel fee | On-time63% |