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

CheapAverageExpensive
Sep 14Sep 21

★ 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.

Planning a trip to Saint Louis?Hotels|Tours

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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