Flights from San Francisco to Saint Louis
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From $380 · Prices update daily
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The quick answer
Flights from San Francisco to Saint Louis start around $380 round-trip. Main carrier: Alaska Airlines. Cheapest month to fly: September.
Price calendar — next 60 days
★ Cheapest: $380 on Mon, Sep 14 · AS
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — San Francisco to Saint Louis
Month-by-month lowest fares. Green = cheapest dates.
United States essentials
🇺🇸 Domestic flight — no passport required
Domestic flight — no passport required for US citizens. Bring REAL ID for security.
Full Saint Louis visa guide →🆘 Emergency
911
💱 Currency
US Dollar ($)
🕐 Time zone
UTC−5 to −10
🗣️ Language
English
🔌 Plugs
Type A/B · 120V
🚗 Driving
Right side
💡 Tipping
Expected — 15–20% at restaurants
📞 Dial code
+1
Entry rules can change — always confirm with official sources before booking.
Stay connected in Saint Louis
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your San Francisco to Saint Louis trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in Saint Louis
Pre-book your ride into Saint Louis. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your San Francisco to Saint Louis flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
San Francisco to Saint Louis — frequently asked
How much is a flight from San Francisco to Saint Louis?+
Fares start around $380 round-trip, ranging up to about $412 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly San Francisco to Saint Louis?+
September typically has the lowest fares.
Are there direct flights from San Francisco to Saint Louis?+
This route is usually served by connecting flights. Use the search above to check for any direct options on your dates.
Which airlines fly from San Francisco to Saint Louis?+
Carriers on this route include Alaska Airlines. Compare them side by side in the search above.
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