What is the cheapest airline to fly from Seattle to Petersburg, Alaska round-trip?

Alaska Airlines, at $468, was found to be the cheapest airline from Seattle to Petersburg, Alaska..

What is the cheapest day to fly from Seattle to Petersburg, Alaska?

Travelers seeking maximum savings on their Seattle to Petersburg, Alaska flight should consider departing on Sunday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Petersburg, Alaska ranges from 5.1 - 16.3 inches per month. October is typically the wettest month, when rainfall can reach 16.3 in. June is typically the driest time to visit Petersburg, Alaska when rainfall is around 5.1 in.

If weather is an important factor for your trip to Petersburg, Alaska, 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 55.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Most accurate provider : When it comes to deals on Seattle-Petersburg, Alaska flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Petersburg, Alaska flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Petersburg, Alaska flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Petersburg, Alaska flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Petersburg, Alaska flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Seattle to Petersburg?

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

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

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

Find Flights from Seattle to Petersburg, AK

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1. Tell us where you want to go

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Cheap flight deals from Seattle to Petersburg

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Seattle/Tacoma Intl-Petersburg flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Petersburg flights.

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Compare providers for flights from Seattle to Petersburg

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Petersburg in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Petersburg, Alaska flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Petersburg, Alaska flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Petersburg, Alaska flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Petersburg, Alaska flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Petersburg, Alaska flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Petersburg

Have a flexible travel schedule? Discover the best time to fly to Petersburg 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 Petersburg

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

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

Reviews of airlines servicing Petersburg

Read through reviews of airlines operating flights from Seattle to Petersburg, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,988 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Alaska Airlines

8.0

Very good

10,988 reviews

Alaska Airlines

8.0

Very good

10,988 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Sep 2025

SEA - MKE

Related info for your journey

What is the cheapest airline to fly from Seattle to Petersburg, Alaska round-trip?
Alaska Airlines, at $468, was found to be the cheapest airline from Seattle to Petersburg, Alaska..
Can I find deals for flights from Seattle to Petersburg that include hotel bookings?
Yes. In addition to deals on Seattle to Petersburg flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Petersburg?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Petersburg.
Can I find deals for business class flights from Seattle to Petersburg?
Yes. Cheapflights offers flight deals from Seattle to Petersburg by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Seattle to Petersburg

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$468	Average$618	FlexibilityNo cancel fee	On-time75%

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Cheap flights from Seattle to Petersburg, AK (SEA - PSG)

Find cheap flights from Seattle to Petersburg 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 Petersburg

Most accurate provider

Most trusted provider

Compare providers for flights from Seattle to Petersburg

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Petersburg in October.

Best time to book a flight from Seattle to Petersburg

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to Petersburg

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

Reviews of airlines servicing Petersburg

Read through reviews of airlines operating flights from Seattle to Petersburg, such as Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What is the cheapest airline to fly from Seattle to Petersburg, Alaska round-trip?

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

How can I find direct flights from Seattle to Petersburg?

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

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 Seattle to Petersburg

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Seattle to Petersburg

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Book with Flexibility

Travel Smart