Seattle

Cheap flights from St. Augustine to Seattle (UST - SEA)

UST — SEA
Feb 27 — Mar 61
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Cheap flight deals from St. Augustine to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from St. Augustine (UST) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars
Provider with most accurate pricing for St. Augustine Northeast Florida Regional-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for St. Augustine Northeast Florida Regional-Seattle/Tacoma Intl flights.
  • Most accurate provider: When it comes to deals on St. Augustine-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Augustine-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Augustine-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Augustine-Seattle 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 St. Augustine-Seattle 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 St. Augustine to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from St. Augustine 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.

Travel insights for flights from St. Augustine to Seattle

Get recent, data-driven insights about flights from St. Augustine to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Augustine to Seattle?

Currently, January is the cheapest month in which you can book a flight from St. Augustine to Seattle (average of $238). Flying from St. Augustine to Seattle in July is currently the most expensive (average of $411). 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.

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

Find hourly flight availability from St. Augustine to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

It’s typically best to fly out from St. Augustine to Seattle in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from St. Augustine to Seattle?

Use this chart to determine the cheapest time to fly round-trip from St. Augustine to Seattle. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their St. Augustine to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Related info for your journey

Find useful and relevant information for your journey from St. Augustine to Seattle. 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 St. Augustine to Seattle that include hotel bookings?

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

  • How can I find direct flights from St. Augustine to Seattle?

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

  • Can I find deals for business class flights from St. Augustine to Seattle?

    Yes. Cheapflights offers flight deals from St. Augustine to Seattle 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 St. Augustine to Seattle?

    Currently, January is the cheapest month in which you can book a flight from St. Augustine to Seattle (average of $238). Flying from St. Augustine to Seattle in July is currently the most expensive (average of $411). 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.

See more FAQs

Traveling to a place near St. Augustine?

Book flights to St. Augustine if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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Alternative routes for St. Augustine to Seattle

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