What are the cheapest airlines to fly from Saint Paul to Chicago one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $27. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Saint Paul to Chicago for a low price.

Weekly flight availability from Saint Paul to Chicago

The most flights from SA1 to CHI are scheduled on a Friday (115 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (80 on average).

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Saint Paul to Chicago?

The most popular flight routes from Saint Paul to Chicago are Minneapolis St Paul - Chicago O'Hare Intl, Minneapolis St Paul - Chicago Midway and Minneapolis St Paul - Chicago Greater Rockford.

What are the cheapest flights from Saint Paul to Chicago?

While on average a flight from Saint Paul to Chicago is generally $1,190, our data shows the cheapest flight currently is $74. When looking at the most popular route, (Minneapolis St Paul - Chicago O'Hare Intl), you can expect to pay $108 for that flight.

What are the most reliable airlines from Saint Paul to Chicago?

No one likes to see their flight delayed. When booking a flight from Saint Paul to Chicago consider choosing Copa Airlines (79%), Turkish Airlines (79%) or Japan Airlines (78%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Saint Paul to Chicago?

The most popular airlines flying from Saint Paul to Chicago are United Airlines, Delta and Sun Country Air. Something to consider prior to booking your flight.

Can I find deals for flights from Saint Paul to Chicago that include hotel bookings?

Yes. In addition to deals on Saint Paul to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Saint Paul to Chicago?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Paul to Chicago.

Can I find deals for business class flights from Saint Paul to Chicago?

Yes. Cheapflights offers flight deals from Saint Paul to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Saint Paul to Chicago

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Cheapflights Tip: The best prices from Saint Paul to Chicago are usually found in December or October, booked 25 days in advance, depart on a Friday or Thursday and return on a Friday

Find flight deals from Saint Paul to Chicago

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	March
Cheapest in	December
Average price	$251

Provider with most accurate pricing for Minneapolis St Paul-Chicago (CHI) flight deals.

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Provider most trusted by Cheapflights users for Minneapolis St Paul-Chicago (CHI) flights.

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Highest demand for flights based on searches. 8% potential increase in price ($24 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in September 2026

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Everything you need to know about your flight from Saint Paul to Chicago

Prices

Airlines

What is the cheapest time of day to fly from SA1 to CHI?

One of the essential ways to save on airfare from Saint Paul to Chicago is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

What is the cheapest day to fly from Saint Paul to Chicago?

Travelers seeking maximum savings on their Saint Paul to Chicago flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Chicago

Read through reviews of airlines operating flights from Saint Paul to Chicago, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Southwest

8.0

Very good

4,202 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Delta

7.8

Good

8,604 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

United Airlines

7.4

Good

10,246 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

American Airlines

7.0

Good

12,097 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Sun Country Air

6.7

Okay

315 reviews

Southwest

8.0

Very good

4,202 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Related info for your journey

What are the cheapest airlines to fly from Saint Paul to Chicago one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $27. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Saint Paul to Chicago for a low price.
What are the most popular routes from Saint Paul to Chicago?
The most popular flight routes from Saint Paul to Chicago are Minneapolis St Paul - Chicago O'Hare Intl, Minneapolis St Paul - Chicago Midway and Minneapolis St Paul - Chicago Greater Rockford.
What are the most reliable airlines from Saint Paul to Chicago?
No one likes to see their flight delayed. When booking a flight from Saint Paul to Chicago consider choosing Copa Airlines (79%), Turkish Airlines (79%) or Japan Airlines (78%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Saint Paul to Chicago?
While on average a flight from Saint Paul to Chicago is generally $1,190, our data shows the cheapest flight currently is $74. When looking at the most popular route, (Minneapolis St Paul - Chicago O'Hare Intl), you can expect to pay $108 for that flight.
Can I find deals for flights from Saint Paul to Chicago that include hotel bookings?
Yes. In addition to deals on Saint Paul to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Saint Paul to Chicago?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint Paul to Chicago.
Can I find deals for business class flights from Saint Paul to Chicago?
Yes. Cheapflights offers flight deals from Saint Paul to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 6 airlines flying from Saint Paul to Chicago

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$38	Average$96	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$67	Average$294	FlexibilityNo cancel fee	On-timeN/A
Sun Country Air	Cheapest$68	Average$176	FlexibilityNo cancel fee	On-time83%
United Airlines	Cheapest$113	Average$250	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$117	Average$288	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$117	Average$377	FlexibilityNo cancel fee	On-time71%

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Cheap flights from Saint Paul, MN to Chicago (CHI)

Find cheap flights from Saint Paul to Chicago with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Saint Paul to Chicago

Most accurate provider

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Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from SA1 to CHI?

One of the essential ways to save on airfare from Saint Paul to Chicago is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.

What is the cheapest day to fly from Saint Paul to Chicago?

Travelers seeking maximum savings on their Saint Paul to Chicago flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Saint Paul to Chicago

The most flights from SA1 to CHI are scheduled on a Friday (115 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (80 on average).

Reviews of airlines servicing Chicago

Read through reviews of airlines operating flights from Saint Paul to Chicago, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the cheapest airlines to fly from Saint Paul to Chicago one-way?

What are the most popular routes from Saint Paul to Chicago?

What are the most reliable airlines from Saint Paul to Chicago?

What are the cheapest flights from Saint Paul to Chicago?

Can I find deals for flights from Saint Paul to Chicago that include hotel bookings?

How can I find direct flights from Saint Paul to Chicago?

Can I find deals for business class flights from Saint Paul to Chicago?

Traveling to a place near Chicago?

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Alternative routes for Saint Paul to Chicago

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Other flights to Chicago

Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.

Complete your trip

Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Saint Paul to Chicago by cabin class

Find flights from Saint Paul to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Saint Paul and Chicago flights

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Top 6 airlines flying from Saint Paul to Chicago

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