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Cheap flights from Seattle (SEA) to Ushuaia (USH)
SEA — USH
Jan 29 — Feb 51
1 adult, Economy
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Find cheap flights from Seattle to Ushuaia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find flight deals from Seattle to Ushuaia
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Ushuaia (USH). 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 December 30, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Compare providers for flights from Seattle to Ushuaia
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 Ushuaia in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Seattle-Ushuaia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Ushuaia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Ushuaia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Ushuaia flights, Cheapflights users trust AranGrant the most. AranGrant 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-Ushuaia 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 Ushuaia
Have a flexible travel schedule? Discover the best time to fly to Ushuaia 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 Ushuaia
Prices
Delays
What is the cheapest time of day to fly from SEA to USH?
Find hourly flight availability from Seattle to Ushuaia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 30, 2025.
It’s optimal to fly from Seattle to Ushuaia at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.
What is the cheapest day to fly from Seattle to Ushuaia?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Ushuaia. Price data was last updated on March 30, 2025.
Travelers seeking maximum savings on their Seattle to Ushuaia flight should consider departing on Monday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Seattle to Ushuaia delayed?
About 18% of weekly flights between Seattle and Ushuaia have experienced delays in the past year, with the average delay time being 137 minutes.
What is the most punctual flight time for Seattle to Ushuaia flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to Ushuaia flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 12% of flights being delayed.