When did momondo last update prices for flights from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How old do you have to be to fly from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$647 Cheap Flights from Rockland to Seattle in 2026

Find the cheapest flights from Rockland to Seattle

Round-trip

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Cheap round-trip flights

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3:27 pm - 10:53 pmRKD Rockland Knox County Regional-SEA Seattle/Tacoma Intl

10h 26m1 stop Boston Logan Intl

11:42 pm - 8:13 pmSEA Seattle/Tacoma Intl-RKD Rockland Knox County Regional

17h 31m1 stop Boston Logan Intl

$647Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

3:27 pm - 10:53 pmRKD Rockland Knox County Regional-SEA Seattle/Tacoma Intl

10h 26m1 stop Boston Logan Intl

11:42 pm - 6:37 pmSEA Seattle/Tacoma Intl-RKD Rockland Knox County Regional

15h 55m1 stop Boston Logan Intl

$709Multiple Airlines

Fri, Aug 28 - Thu, Sep 10

1:04 pm - 10:39 pmRKD Rockland Knox County Regional-SEA Seattle/Tacoma Intl

12h 35m2 stops Boston Logan Intl Portland

11:42 pm - 12:05 pmSEA Seattle/Tacoma Intl-RKD Rockland Knox County Regional

9h 23m1 stop Boston Logan Intl

$754Multiple Airlines

Fri, Sep 4 - Thu, Sep 10

1:04 pm - 10:39 pmRKD Rockland Knox County Regional-SEA Seattle/Tacoma Intl

12h 35m2 stops Boston Logan Intl Portland

7:51 pm - 12:05 pmSEA Seattle/Tacoma Intl-RKD Rockland Knox County Regional

13h 14m2 stops Portland Boston Logan Intl

$904Multiple Airlines

Fri, Sep 4 - Thu, Sep 10

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RocklandSeattle

RKD Rockland Knox County Regional - SEA Seattle/Tacoma Intl

RKDSEA

Rockland Knox County Regional

Tue 9/1

3:27 pm-10:53 pm

1 stop10h 26m

Seattle/Tacoma Intl

Wed 9/9

11:42 pm-8:13 pm

1 stop17h 31m

$647

RocklandSeattle

RKD Rockland Knox County Regional - SEA Seattle/Tacoma Intl

RKDSEA

Rockland Knox County Regional

Fri 8/28

3:27 pm-10:53 pm

1 stop10h 26m

Seattle/Tacoma Intl

Thu 9/10

11:42 pm-6:37 pm

1 stop15h 55m

$709

Quickest round-trip

RocklandSeattle

RKD Rockland Knox County Regional - SEA Seattle/Tacoma Intl

RKDSEA

Rockland Knox County Regional

Fri 9/4

1:04 pm-10:39 pm

2 stops12h 35m

Seattle/Tacoma Intl

Thu 9/10

11:42 pm-12:05 pm

1 stop9h 23m

$754

RocklandSeattle

RKD Rockland Knox County Regional - SEA Seattle/Tacoma Intl

RKDSEA

Rockland Knox County Regional

Fri 9/4

1:04 pm-10:39 pm

2 stops12h 35m

Seattle/Tacoma Intl

Thu 9/10

7:51 pm-12:05 pm

2 stops13h 14m

$904

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Rockland to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Seattle?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Seattle from Rockland according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

When to book flights from Rockland to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Rockland to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Rockland to Seattle (RKD to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rockland to Seattle

Fastest flight time	10h 26m
Direct flights	None

The fastest flight from Rockland to Seattle takes 10h 26m

There are no direct flights from Rockland to Seattle. There are no popular flight routes from Rockland to Seattle.

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Frequently asked questions about flying from Rockland to Seattle

How far is Rockland Knox County Regional to Seattle/Tacoma Intl by plane?
Rockland Knox County Regional and Seattle/Tacoma Intl are 2520.5 mi apart from one another. A reasonable flight in good conditions will take 10h 26m.
When did momondo last update prices for flights from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rockland Knox County Regional Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Rockland to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Rockland.

Can I find flights from Rockland to Seattle with flexible booking policies on momondo?

All flight searches from Rockland to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Rockland to Seattle?

Once you have performed a search for Rockland to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Rockland to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Rockland to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.