Flights from St Louis to Ontario

Selected fares from St Louis to Ontario

Departure Arrival Travel dates Round-trip
STL ONT Sun, Sep 20 - Mon, Sep 21 $301
STL ONT Sat, May 23 - Sat, May 30 $365
STL ONT Sat, May 23 - Sat, May 30 $365
STL ONT Mon, Jun 15 - Wed, Jun 17 $417
STL ONT Mon, Jun 15 - Wed, Jun 17 $754

St Louis and Ontario airports and terminals

Airports in St Louis MO, US

map of airports in St Louis
  • 1

    St Louis Airport (STL)

    Distance from City Center: 12.5 miles

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Airports in Ontario CA, US

map of airports in Ontario
  • 1

    Ontario International Airport (ONT)

    Distance from City Center: 0.9 miles

  • 2

    Long Beach Municipal (LGB)

    Distance from City Center: 34.9 miles

  • 3

    Bob Hope (BUR)

    Distance from City Center: 43.6 miles

  • 4

    John Wayne Airport (SNA)

    Distance from City Center: 30.6 miles

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$403

Highlighted price = Cheapest round-trip flights

Prices are round trip per person (conditions apply)

Featured Ontario Airport Hotels

Hotel only $72

Radisson Hotel Ontario Airport

3 stars
3.8 / 5 44 reviews

2200 EAST HOLT BOULEVARD Map

Save 10% on your stay

The Radisson Ontario Airport, just 1.6 miles from the Ontario International Airport, offers complimentary airport shuttle service to get your business trip or vacation off to the perfect start.... More

Hotel only $85

Holiday Inn ONTARIO AIRPORT

3 stars
4.3 / 5 67 reviews

2155 E. Convention Center Way Map

...Ontario International Airport (0.8 mi/2 km) Ontario Convention Center (0.2 mi/0.4 km).... Executive suites available Centrally located Ontario hotel close to the airport and shopping... More

Hotel only $79

Fairfield Inn by Marriott Ontario

3 stars
3.8 / 5 48 reviews

3201 East Centrelake Drive Map

Cozy, economical hotel close to Ontario airport and major attractions Fairfield Inn by Marriott Ontario offers a comfortable, tranquil guest experience, just minutes away from Ontario... More

Hotel only $104

Residence Inn by Marriott Ontario Airport

3 stars
4.0 / 5 25 reviews

2025 Convention Center Way Map

...The Residence Inn by Marriott Ontario Airport hotel offers 200 apartment-style suites with fully equipped kitchens.... The Residence Inn Ontario Airport hotel is less than a mile from the... More

Hotel only $109

Ayres Hotel & Suites Ontario Airport

3 stars
4.2 / 5 24 reviews

1945 Holt Blvd. Map

...Located 1/2 mile NW of The Ontario International Airport.... More

June

Lowest roundtrip airfare in June from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Tue, Jun 30 St Louis (STL) Ontario (ONT) US Airways $403
Earn $4.03
Return Tue, Jul 7 Ontario (ONT) St Louis (STL) US Airways

Best one-week trip in June from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Tue, Jun 30 St Louis (STL) Ontario (ONT) US Airways $403
Earn $4.03
Return Tue, Jul 7 Ontario (ONT) St Louis (STL) US Airways
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July

Cheapest weekend flights in July from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Thu, Jul 16 St Louis (STL) Ontario (ONT) US Airways $417
Earn $4.17
Return Mon, Jul 20 Ontario (ONT) St Louis (STL) US Airways

Lowest roundtrip airfare in July from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Wed, Jul 29 St Louis (STL) Ontario (ONT) US Airways $410
Earn $4.10
Return Sat, Aug 8 Ontario (ONT) St Louis (STL) US Airways
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August

Cheapest weekend flights in August from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Thu, Aug 13 St Louis (STL) Ontario (ONT) US Airways $443
Earn $4.43
Return Mon, Aug 17 Ontario (ONT) St Louis (STL) US Airways

Lowest roundtrip airfare in August from St Louis to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Mon, Aug 24 St Louis (STL) Ontario (ONT) Delta Air Lines $384
Earn $3.84
Return Sat, Aug 29 Ontario (ONT) St Louis (STL) Delta Air Lines
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Flights to Ontario

Lambert-St. Louis International Airport

Planning a trip on a budget can often be a challenge. Orbitz.com allows travelers to search many different airlines at once to find cheap flights from St. Louis, Missouri. The Lambert-St. Louis International Airport is located 15 miles northwest of downtown on Airflight Drive. Thirteen airlines provide services to the airport, including US Airways, United Airlines, Delta and American Airlines.

Parking at the Airport

Parking at the Lambert-St. Louis International Airport is provided by Super Park. Both long-term and short-term parking are available. Shuttle services are available 24 hours a day to and from the parking areas to the main terminal. Super Park ensures the closest parking available, and in many cases, parking is within walking distance to the terminal. Fees are charged by the hour or by the day with discounts for weekly parking.

Transportation to the Airport

Go Best Express Airport Shuttle offers shared shuttle rides to and from all downtown hotels and businesses in St. Louis. Shuttles are available every 15 to 30 minutes all day, and reservations are recommended. The MetroLink has 37 stations that provide service to and from the airport. The Link is available for a flat fee. The Metropolitan Taxicab Commission services the Lambert-St. Louis International Airport, and it provides metered transportation in and around St. Louis. Exact fares depend on the destination, and taxis require an additional $3 airport fee. Limos are available for rent by the day or by the hour, and many local hotels provide complimentary shuttles to and from the airport for their guests. Orbitz.com can assist travelers in locating cheap car rental agencies in the area.

Dining Options at Lambert-St. Louis International Airport

The Lambert-St. Louis International Airport offers many excellent food options for those who want to eat before their flight. The Great American Bagel Company offers many bagel varieties, as well as fresh coffee and juice. Starbucks is available at the Lambert's East Terminal and has a selection of blended coffees and bakery items. For travelers who prefer a sit-down meal before reaching the airport, Half and Half is located near the airport in St. Louis and offers eggs, toast, bacon and fresh donuts. For individuals looking for travel deals, Orbitz.com can provide assistance in locating cheap flights from St. Louis.

Flying Into Ontario International Airport

Flights into Ontario International Airport are for passengers destined for the Inland Empire region of California. Located 35 miles from downtown Los Angeles on East Airport Drive, the airport is actually a part of the LAX system. A medium-sized hub, the airport has the capabilities to service a full slate of commercial flights. Airlines found within the terminals include international carriers Aero Mexico as well as popular domestic carriers like United, Southwest, Delta and American Airlines. Seven airlines service LA/Ontario International, and they operate more than 114 flights each day.

Finding Transportation From the Airport

There are several ways to get to the many cities throughout the Inland Empire region. Hotels in and around Ontario offer hotel shuttles, free of charge, that run from the terminal to the hotel lobby. You can take a taxi to downtown Ontario for a little more than $10 or go all the way to downtown Los Angeles for around $100. Private shuttles are also available and will cost about the same fees. Private shuttles, however, must be reserved. Rental cars are also available. With Orbitz.com, you can buy tickets and reserve a rental car at the same time.

What to Expect From the Weather

The weather is always sunny. The temperatures rarely dip below 70 degrees Fahrenheit and are usually below 90 degrees Fahrenheit. Temperatures in July and August may exceed this range, but never stick around for long. Don't expect the threat of rain to ruin your plans or dictate the calendar when booking tickets on Orbitz.com.

Ontario's Offerings for Visitors

When in Ontario, check out the outdoors in Cucamonga-Guasti Regional Park. You can also take in a concert at the Ontario Convention center or have a cultural experience at the Museum of History and Art, Ontario. Don't just race through the city on your way to Los Angeles or the surrounding cities. Booking bargain flights to Ontario with Orbitz.com will save you some major cash, so spend it exploring what the city has to offer.

Flight schedule for flights from St Louis to Ontario on Mon, May 4, 2015

Carrier Flight # Departing Arriving Aircraft Flight time
Airport Time Airport Time
American Airlines/American Airlines AA485/AA641 STL 5:15 AM ONT 9:07 AM 319/319 5hr 52min
American Airlines/American Airlines AA322/AA103 STL 6:10 AM ONT 10:07 AM M80/M80 5hr 57min
American Airlines/US Airways AA322/US103 STL 6:10 AM ONT 10:07 AM M80/M80 5hr 57min
US Airways/American Airlines US322/AA103 STL 6:10 AM ONT 10:07 AM M80/M80 5hr 57min
US Airways/US Airways US322/US103 STL 6:10 AM ONT 10:07 AM M80/M80 5hr 57min
American Airlines/American Airlines AA506/AA647 STL 7:35 AM ONT 11:33 AM 319/320 5hr 58min
American Airlines/US Airways AA506/US647 STL 7:35 AM ONT 11:33 AM 319/320 5hr 58min
American Airlines/American Airlines AA1475/AA1470 STL 7:45 AM ONT 1:38 PM M80/M80 7hr 53min
American Airlines/US Airways AA1475/US1470 STL 7:45 AM ONT 1:38 PM M80/M80 7hr 53min
American Airlines/American Airlines AA323/AA1470 STL 9:25 AM ONT 1:38 PM M80/M80 6hr 13min
American Airlines/US Airways AA323/US1470 STL 9:25 AM ONT 1:38 PM M80/M80 6hr 13min
US Airways/American Airlines US1475/AA1470 STL 7:45 AM ONT 1:38 PM M80/M80 7hr 53min
US Airways/US Airways US1475/US1470 STL 7:45 AM ONT 1:38 PM M80/M80 7hr 53min