What is the cheapest airline that flies from Washington to Petersburg?

Alaska Airlines is the most popular carrier operating from Washington to Petersburg

How many flights depart from State of Washington to Petersburg, Alaska on average per week?

As of March 2026, 3 flights take off from State of Washington and land in Petersburg, Alaska each week. The most common flight departure day for this route is Fri, with 33% of weekly flights taking off on this day.

When did momondo last update prices for flights from Washington to Petersburg Airport?

Prices for flights from Washington to Petersburg Airport are updated daily.

How many operators does momondo search for flights from Washington to Petersburg Airport?

As of March 2026, there is 1 operator available to choose from for flights from Washington to Petersburg Airport.

How old do you have to be to fly from Washington to Petersburg Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Petersburg Airport.

What documentation or ID do you need to fly to Petersburg Airport?

The travel and health documents you'll need for your trip to Petersburg 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 Petersburg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$247 Cheap Flights from Washington to Petersburg in 2026

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Find the cheapest flights from Washington to Petersburg

Round-trip

One-way

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 10:45 am

SEA

PSG

4h 45m

2 stops

2:53 pm - 8:17 pm

PSG

SEA

4h 24m

2 stops

$490Alaska Airlines

Fri, May 1 - Tue, May 5

7:00 am - 10:45 am

SEA

PSG

4h 45m

2 stops

11:30 am - 5:59 pm

PSG

SEA

5h 29m

1 stop

$499Alaska Airlines

Fri, May 1 - Tue, May 5

7:00 am - 10:41 am

SEA

PSG

4h 41mnonstop

3:26 pm - 8:56 pm

PSG

SEA

4h 30mnonstop

$521Alaska Airlines

Sat, May 16 - Tue, May 19

7:00 am - 10:45 am

SEA

PSG

4h 45m

2 stops

11:30 am - 5:38 pm

PSG

SEA

29h 08m

3 stops

$539Alaska Airlines

Fri, May 1 - Tue, May 5

7:07 am - 2:11 pm

SEA

PSG

8h 04m

1 stop

11:30 am - 9:14 pm

PSG

SEA

8h 44m

1 stop

$540Alaska Airlines

Fri, May 1 - Tue, May 5

7:00 am - 10:41 am

SEA

PSG

4h 41mnonstop

11:23 am - 10:15 pm

PSG

SEA

9h 52m

1 stop

$593Alaska Airlines

Sat, May 16 - Tue, May 19

7:00 am - 10:45 am

SEA

PSG

4h 45m

2 stops

2:53 pm - 5:59 pm

PSG

SEA

26h 06m

3 stops

$604Alaska Airlines

Fri, May 1 - Tue, May 5

7:00 am - 10:43 am

SEA

PSG

4h 43m

2 stops

2:55 pm - 8:26 pm

PSG

SEA

4h 31m

2 stops

$652Alaska Airlines

Thu, Jun 18 - Thu, Jun 25

7:00 am - 10:43 am

SEA

PSG

4h 43mnonstop

2:55 pm - 9:50 pm

PSG

SEA

5h 55m

1 stop

$656Alaska Airlines

Thu, Jun 18 - Thu, Jun 25

7:07 am - 2:11 pm

SEA

PSG

8h 04m

1 stop

2:53 pm - 8:17 pm

PSG

SEA

4h 24m

2 stops

$661Alaska Airlines

Fri, May 1 - Tue, May 5

Alaska Airlines flights from State of Washington to Petersburg, Alaska

Our best Alaska Airlines deals on State of Washington to Petersburg, Alaska flight tickets

Alaska Airlines

May 1

SEA7:00 amSeattle/Tacoma Intl

4h 45m

2 stops

PSG10:45 amPetersburg

May 5

PSG2:53 pmPetersburg

4h 24m

2 stops

SEA8:17 pmSeattle/Tacoma Intl

$490

Alaska Airlines

May 1

SEA7:00 amSeattle/Tacoma Intl

4h 45m

2 stops

PSG10:45 amPetersburg

May 5

PSG11:30 amPetersburg

5h 29m

1 stop

SEA5:59 pmSeattle/Tacoma Intl

$499

Alaska Airlines

May 16

SEA7:00 amSeattle/Tacoma Intl

4h 41m

PSG10:41 amPetersburg

May 19

PSG3:26 pmPetersburg

4h 30m

SEA8:56 pmSeattle/Tacoma Intl

$521

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Petersburg, Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Tue 5/5

2:53 pm-8:17 pm

2 stops4h 24m

$490

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Tue 5/5

11:30 am-5:59 pm

1 stop5h 29m

$499

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Sat 5/16

7:00 am-10:41 am

Nonstop4h 41m

Petersburg

Tue 5/19

3:26 pm-8:56 pm

Nonstop4h 30m

$521

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Tue 5/5

11:30 am-5:38 pm

3 stops29h 08m

$539

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:07 am-2:11 pm

1 stop8h 04m

Petersburg

Tue 5/5

11:30 am-9:14 pm

1 stop8h 44m

$540

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Sat 5/16

7:00 am-10:41 am

Nonstop4h 41m

Petersburg

Tue 5/19

11:23 am-10:15 pm

1 stop9h 52m

$593

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Tue 5/5

2:53 pm-5:59 pm

3 stops26h 06m

$604

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Thu 6/18

7:00 am-10:43 am

2 stops4h 43m

Petersburg

Thu 6/25

2:55 pm-8:26 pm

2 stops4h 31m

$652

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Thu 6/18

7:00 am-10:43 am

Nonstop4h 43m

Petersburg

Thu 6/25

2:55 pm-9:50 pm

1 stop5h 55m

$656

SeattlePetersburg

SEA - PSG

SEAPSG

Seattle/Tacoma Intl

Fri 5/1

7:07 am-2:11 pm

1 stop8h 04m

Petersburg

Tue 5/5

2:53 pm-8:17 pm

2 stops4h 24m

$661

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Petersburg, Alaska

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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Petersburg, Alaska?

The cheapest day to depart on your flight to Petersburg, Alaska is on a Sunday when prices can be found for as low as $578. This is often the case because there is less demand to fly during this day of the week. Flights from State of Washington to Petersburg, Alaska on a Wednesday will generally be more expensive and average around $808. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Washington to Petersburg flight route?

Fly from Seattle/Tacoma Intl to Petersburg for the best Washington - Petersburg flight prices

What cabin class options are available on Washington to Petersburg flights?

There is only 1 cabin class available to choose from on Washington to Petersburg flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Petersburg, Alaska flights?

You could potentially save up to 42% on your flight if you consider stops on a State of Washington to Petersburg, Alaska flight.

Cheap State of Washington to Petersburg, Alaska flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Petersburg, Alaska

Fastest flight time	4h 41m
Direct flights	Mon, Wed, Thu, Fri, Sat and Sun
Airports in Petersburg, Alaska	1 airport

The fastest flight from State of Washington to Petersburg, Alaska takes 4h 41m

Direct flights go from State of Washington to Petersburg, Alaska on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There is 1 airport in Petersburg, Alaska. From State of Washington there are direct flights to Petersburg (PSG).

Search flight deals

When did momondo last update prices for flights from Washington to Petersburg Airport?
Prices for flights from Washington to Petersburg Airport are updated daily.
How many operators does momondo search for flights from Washington to Petersburg Airport?
As of March 2026, there is 1 operator available to choose from for flights from Washington to Petersburg Airport.
How old do you have to be to fly from Washington to Petersburg Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Petersburg Airport.
What documentation or ID do you need to fly to Petersburg Airport?
The travel and health documents you'll need for your trip to Petersburg 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 Petersburg Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Petersburg, Alaska?
Based on momondo bookings for flights between State of Washington and Petersburg, Alaska, the leading plane model is Boeing 737-700, making up 80.00% of the total bookings. Other popular models include Boeing 737-700 Passenger/BBJ1 (winglets) with 20.00%.

Best airlines flying from State of Washington to Petersburg, Alaska

Compare and see reviews for airlines that fly from State of Washington to Petersburg, Alaska with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $463	Free Cancellation	Rating 7.9 12,093 reviews		Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Petersburg?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Petersburg. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Petersburg with flexible booking policies on momondo?

Flights from Washington to Petersburg with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington to Petersburg?

Once you have performed a search for Washington to Petersburg 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 Washington to Petersburg right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Petersburg from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.