In terms of precipitation, rainfall in New Haven ranges from 3.1 - 4.5 inches per month. May is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit New Haven when rainfall is around 3.1 in.

If weather is an important factor for your trip to New Haven, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

How far in advance should I book a flight from Seattle to New Haven?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 113% on flights from Seattle to New Haven compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $409. For sooner than that we have options available in the next 3 days from $718.

What is the cheapest month to fly from Seattle to New Haven?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to New Haven. Flights to New Haven from Seattle in September are about $384 on average during September, but can be found for as low as $159.

What is the cheapest time of day to fly from SEA to HVN?

When flying from Seattle to New Haven, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Seattle to New Haven that include hotel bookings?

Yes. In addition to deals on Seattle to New Haven flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to New Haven?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to New Haven.

Can I find deals for business class flights from Seattle to New Haven?

Yes. Cheapflights offers flight deals from Seattle to New Haven by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$199+ Cheap Flights from Seattle to New Haven

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Cheap flight deals from Seattle to New Haven

Round-trip from	$508 (Mytrip)
One-way from	$199 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$312

From Seattle/Tacoma Intl to Tweed-New Haven

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One-way flight from Seattle/Tacoma Intl to Tweed-New Haven

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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Seattle to New Haven

Cheapest flights from Seattle to New Haven
Explore the most affordable flight options available from Seattle to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

jue. 10/166:35 pmSEA - HVN

2 stops24h 23mMultiple Airlines

lun. 10/208:50 amHVN - SEA

2 stops11h 29mMultiple Airlines

Deal found 9/11

$508

jue. 9/256:31 pmSEA - HVN

2 stops23h 47mMultiple Airlines

lun. 9/298:50 amHVN - SEA

2 stops11h 11mMultiple Airlines

Deal found 9/9

$551

Best flights from Seattle to New Haven
Discover carefully curated flight deals from Seattle to New Haven that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

jue. 10/166:35 pmSEA - HVN

2 stops24h 23mMultiple Airlines

lun. 10/208:50 amHVN - SEA

2 stops11h 29mMultiple Airlines

Deal found 9/11

$508

jue. 9/256:31 pmSEA - HVN

2 stops23h 47mMultiple Airlines

lun. 9/298:50 amHVN - SEA

2 stops11h 11mMultiple Airlines

Deal found 9/9

$551

Last-minute flights from Seattle to New Haven
Discover last-minute flight deals from Seattle to New Haven. Data last updated septiembre 11, 2025 and is based on user searches.

jue. 9/256:31 pmSEA - HVN

2 stops23h 47mMultiple Airlines

lun. 9/298:50 amHVN - SEA

2 stops11h 11mMultiple Airlines

Deal found 9/9

$551

jue. 10/166:35 pmSEA - HVN

2 stops24h 23mMultiple Airlines

lun. 10/208:50 amHVN - SEA

2 stops11h 29mMultiple Airlines

Deal found 9/11

$508

One-way flights from Seattle to New Haven
Search for one-way flight options from Seattle to New Haven. Find affordable one-way fares based on user searches. Data last updated septiembre 11, 2025.

jue. 11/66:24 pmSEA - HVN

2 stops18h 37mMultiple Airlines

Deal found 9/9

$199

mié. 11/512:58 pmSEA - HVN

3 stops49h 48mMultiple Airlines

Deal found 9/9

$202

jue. 10/26:04 pmSEA - HVN

2 stops19h 01mMultiple Airlines

Deal found 9/10

$211

mié. 10/12:58 pmSEA - HVN

2 stops28h 54mMultiple Airlines

Deal found 9/11

$256

jue. 9/256:31 pmSEA - HVN

2 stops23h 47mMultiple Airlines

Deal found 9/11

$277

lun. 12/13:22 pmSEA - HVN

2 stops19h 35mMultiple Airlines

Deal found 9/11

$354

dom. 11/3011:10 pmSEA - HVN

2 stops35h 47mMultiple Airlines

Deal found 9/11

$384

sáb. 11/296:49 pmSEA - HVN

3 stops43h 57mMultiple Airlines

Deal found 9/11

$544

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to New Haven that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

jue. 10/16

6:35 pm-9:58 pm

2 stops24h 23m

Tweed-New Haven

lun. 10/20

8:50 am-5:19 pm

2 stops11h 29m

$508

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

jue. 9/25

6:31 pm-9:18 pm

2 stops23h 47m

Tweed-New Haven

lun. 9/29

8:50 am-5:01 pm

2 stops11h 11m

$551

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

jue. 11/6

6:24 pm-4:01 pm

2 stops18h 37m

$199

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

mié. 11/5

12:58 pm-5:46 pm

3 stops49h 48m

$202

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

jue. 10/2

6:04 pm-4:05 pm

2 stops19h 01m

$211

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

mié. 10/1

2:58 pm-10:52 pm

2 stops28h 54m

$256

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

jue. 9/25

6:31 pm-9:18 pm

2 stops23h 47m

$277

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

lun. 12/1

3:22 pm-1:57 pm

2 stops19h 35m

$354

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

dom. 11/30

11:10 pm-1:57 pm

2 stops35h 47m

$384

SeattleNew Haven

SEA - HVN

SEAHVN

Seattle/Tacoma Intl

sáb. 11/29

6:49 pm-5:46 pm

3 stops43h 57m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Seattle to New Haven

Have a flexible travel schedule? Discover the best time to fly to New Haven from Seattle 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 Seattle to New Haven

What is the cheapest month to book a flight from Seattle to New Haven?

Currently, February is the cheapest month in which you can book a flight from Seattle to New Haven (average of $91). Flying from Seattle to New Haven in December is currently the most expensive (average of $181). 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.

Related info for your journey

Can I find deals for flights from Seattle to New Haven that include hotel bookings?
Yes. In addition to deals on Seattle to New Haven flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to New Haven?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to New Haven.
Can I find deals for business class flights from Seattle to New Haven?
Yes. Cheapflights offers flight deals from Seattle to New Haven by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to New Haven?
Currently, February is the cheapest month in which you can book a flight from Seattle to New Haven (average of $91). Flying from Seattle to New Haven in December is currently the most expensive (average of $181). 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.

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$199+ Cheap flights from Seattle to New Haven (SEA - HVN)

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to New Haven with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to New Haven

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to New Haven

Cheapest flights from Seattle to New HavenExplore the most affordable flight options available from Seattle to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Explore the most affordable flight options available from Seattle to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to New Haven that are best for you.

Best time to book a flight from Seattle to New Haven

Have a flexible travel schedule? Discover the best time to fly to New Haven from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to New Haven

What is the cheapest month to book a flight from Seattle to New Haven?

Related info for your journey

Find useful and relevant information for your journey from Seattle to New Haven. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Seattle to New Haven that include hotel bookings?

How can I find direct flights from Seattle to New Haven?

Can I find deals for business class flights from Seattle to New Haven?

What is the cheapest month to book a flight from Seattle to New Haven?

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Cheapest flights from Seattle to New Haven
Explore the most affordable flight options available from Seattle to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.