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SEA - STL Price
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C$ 298 - C$ 487
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STL Temperature
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7 - 32 °C
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STL Rainfall
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57 - 130 mm
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Popular in December High demand for flights, 27% potential price rise |
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Cheapest in August Best time to find cheap flights, 16% potential price drop |
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Average price C$ 382 Average for round-trip flights in May 2021 |
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Round-trip from C$ 298 From Seattle to St Louis |
Monday flights are found to be more expensive to fly from Seattle to St Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St Louis.
Travellers have found it’s best to book a flight 39 days in advance to save up to 26% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 39 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to St Louis 1-2 weeks in advance for as low as C$ 551, or C$ 657 for flights within the next 24 hours.
February is one of the best times of the year to fly to St Louis from Seattle. Prices for February average C$ 518 per person but you can even find prices for as low as C$ 208. The most expensive prices can be found in the month of June. Opting for a February flight can save you 29% on your journey compared to booking in February
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to St Louis as you normally would.
You can find direct flights on the following days: Tuesday.
This flight path from Seattle/Tacoma Intl to Lambert-St Louis was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
1 flight departure from Seattle/Tacoma Intl to Lambert-St Louis per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures
In Seattle, there will be less rainfall in Seattle compared to St Louis over the next 17 days.
With an average temperature of 32 °C, peak weather can be found in July. As a traveller, expect to see changes in flight prices during that period. The temperatures in St Louis are hotter than in Seattle.
| Morning 6 AM to noon | 50% of flight departures |
| Afternoon Noon to 6 PM | 50% of flight departures |
| Early morning Midnight to 6 AM | 0% of flight departures |
| Evening 6 PM to midnight | 0% of flight departures |