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 August 2026, 5 flights take off from State of Washington and land in Petersburg, Alaska each week. The most common flight departure day for this route is Mon, with 20% 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 August 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.

$366 Cheap Flights from Washington to Petersburg, Alaska in 2026

Find the cheapest flights from Washington to Petersburg

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 10:45 amSEA Seattle/Tacoma Intl-PSG Petersburg

4h 45m2 stops Ketchikan Wrangell SPB

2:52 pm - 8:42 pmPSG Petersburg-SEA Seattle/Tacoma Intl

4h 50m2 stops Wrangell SPB Ketchikan

$716Alaska Airlines

Sat, Dec 12 - Wed, Dec 16

7:00 am - 10:46 amSEA Seattle/Tacoma Intl-PSG Petersburg

4h 46m2 stops Ketchikan Wrangell SPB

2:57 pm - 8:31 pmPSG Petersburg-SEA Seattle/Tacoma Intl

4h 34m2 stops Wrangell SPB Ketchikan

$716Alaska Airlines

Thu, Sep 3 - Mon, Sep 7

7:00 am - 10:46 amSEA Seattle/Tacoma Intl-PSG Petersburg

4h 46m2 stops Ketchikan Wrangell SPB

11:30 am - 10:15 pmPSG Petersburg-SEA Seattle/Tacoma Intl

9h 45m1 stop Juneau Intl

$725Alaska Airlines

Thu, Sep 3 - Mon, Sep 7

7:00 am - 10:45 amSEA Seattle/Tacoma Intl-PSG Petersburg

4h 45m2 stops Ketchikan Wrangell SPB

11:29 am - 10:26 pmPSG Petersburg-SEA Seattle/Tacoma Intl

9h 57m1 stop Juneau Intl

$725Alaska Airlines

Sat, Dec 12 - Wed, Dec 16

7:00 am - 2:08 pmSEA Seattle/Tacoma Intl-PSG Petersburg

8h 08m1 stop Juneau Intl

11:29 am - 10:26 pmPSG Petersburg-SEA Seattle/Tacoma Intl

9h 57m1 stop Juneau Intl

$735Alaska Airlines

Sat, Dec 12 - Wed, Dec 16

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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

Sep 3

SEA7:00 amSeattle/Tacoma Intl

4h 46m

2 stops

PSG10:46 amPetersburg

Sep 7

PSG2:57 pmPetersburg

4h 34m

2 stops

SEA8:31 pmSeattle/Tacoma Intl

$716

Alaska Airlines

Sep 3

SEA7:00 amSeattle/Tacoma Intl

4h 46m

2 stops

PSG10:46 amPetersburg

Sep 7

PSG11:30 amPetersburg

9h 45m

1 stop

SEA10:15 pmSeattle/Tacoma Intl

$725

Alaska Airlines

Sep 3

SEA9:57 amSeattle/Tacoma Intl

5h 16m

1 stop

PSG2:13 pmPetersburg

Sep 7

PSG11:30 amPetersburg

9h 45m

1 stop

SEA10:15 pmSeattle/Tacoma Intl

$735

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

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Sat 12/12

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Wed 12/16

2:52 pm-8:42 pm

2 stops4h 50m

$716

Quickest round-trip

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

7:00 am-10:46 am

2 stops4h 46m

Petersburg

Mon 9/7

2:57 pm-8:31 pm

2 stops4h 34m

$716

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

7:00 am-10:46 am

2 stops4h 46m

Petersburg

Mon 9/7

11:30 am-10:15 pm

1 stop9h 45m

$725

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Sat 12/12

7:00 am-10:45 am

2 stops4h 45m

Petersburg

Wed 12/16

11:29 am-10:26 pm

1 stop9h 57m

$725

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Sat 12/12

7:00 am-2:08 pm

1 stop8h 08m

Petersburg

Wed 12/16

11:29 am-10:26 pm

1 stop9h 57m

$735

Cheapest one-way

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

9:57 am-2:13 pm

1 stop5h 16m

$366

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

9:47 am-10:46 am

2 stops25h 59m

$368

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

1:35 pm-10:46 am

3 stops22h 11m

$484

Quickest one-way

SeattlePetersburg

SEA Seattle/Tacoma Intl - PSG Petersburg

SEAPSG

Seattle/Tacoma Intl

Thu 9/3

7:00 am-10:46 am

Nonstop4h 46m

$781

Flights are sorted by cheapest round-trip flights first.

Sorted 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 Saturday when prices can be found for as low as $591. 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 State of Washington to Petersburg, Alaska flights?

There is only 1 cabin class available to choose from on State of Washington to Petersburg, Alaska 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 60% 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 40m
Direct flights	Fri and Sun
Airports in Petersburg, Alaska	1 airport

The fastest flight from State of Washington to Petersburg, Alaska takes 4h 40m

Direct flights go from State of Washington to Petersburg, Alaska on Friday 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

Frequently asked questions about flying from Washington to Petersburg, Alaska

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 August 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 Passenger/BBJ1 (winglets), making up 50.00% of the total bookings. Other popular models include Boeing 737-700 with 50.00%.

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 $422	Free Cancellation	Rating 7.9 12,794 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.