Popular in | January |
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Cheapest in | September |
Round-trip from | $318 |
One-way from | $90 |
Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 37% on your flight compared to booking on days when demand is much higher.
To save on the cost of your flight from Chicago to St. Louis, book at least 51 days before your planned departure. Booking around this time can save you about 166% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $240 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $240.
September is one of the best times of the year to fly to St. Louis from Chicago. Prices for September average $273 per person but you can even find prices for as low as $128. The most expensive prices can be found in the month of January. Opting for a September flight can save you 20% on your journey compared to booking in January
Unlike in the evening, when flights are generally more expensive, you can save up to 31% on flights from Chicago to St. Louis by exploring options for tickets in the afternoon.
Fly from
Fly to
Budget
$109 - $210
Route
Depart
Return
Price
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 8/14
1 stop15h 25m
Lambert-St Louis
Sat 8/24
1 stop3h 35m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Fri 7/5
1 stop8h 30m
Lambert-St Louis
Sat 7/6
1 stop4h 10m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 6/27
Nonstop1h 13m
Lambert-St Louis
Sun 6/30
Nonstop1h 22m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 6/27
Nonstop1h 13m
Lambert-St Louis
Mon 7/1
Nonstop1h 22m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Fri 6/28
Nonstop1h 23m
Lambert-St Louis
Mon 7/1
Nonstop1h 25m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 7/3
2 stops23h 12m
Lambert-St Louis
Sun 7/7
1 stop3h 35m
Chicago MidwayLambert-St Louis
MDW - STL
MDWSTL
Chicago Midway
Fri 6/28
1 stop6h 58m
Lambert-St Louis
Mon 7/1
1 stop20h 48m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 6/27
1 stop12h 23m
Lambert-St Louis
Sun 6/30
1 stop16h 39m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Tue 8/13
2 stops9h 57m
Lambert-St Louis
Fri 8/23
1 stop6h 41m
STL Temperature | 32 - 80.6 °F |
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If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Food
Entertainment
Comfort
Boarding
Crew
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Entertainment
Comfort
Boarding
Crew
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Entertainment
Comfort
Boarding
Crew
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Entertainment
Comfort
Boarding
Crew
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Entertainment
Comfort
Boarding
Crew
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
American Airlines | Cheapest$98 | Average$277 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$130 | Average$290 | FlexibilityNo cancel fee | On-time69% |
Southern / Mokulele | Cheapest$144 | Average$171 | FlexibilityNo cancel fee | On-timeN/A |
1%of flight departures | Early morningMidnight to 6 am |
---|---|
32%of flight departures | Morning6 am to noon |
28%of flight departures | AfternoonNoon to 6 pm |
39%of flight departures | Evening6 pm to midnight |
Sunday | 49daily flights |
---|---|
Monday | 54daily flights |
Tuesday | 46daily flights |
Wednesday | 48daily flights |
Thursday | 52daily flights |
Friday | 54daily flights |
Saturday | 36daily flights |