What is the cheapest flight from Chicago O'Hare Intl Airport to Santarém?

In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Santarém was $726 for a round-trip ticket. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Chicago and Santarém?

Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Santarém. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Chicago to Santarém?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Chicago to Santarém?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Santarém. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Santarém?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santarém from Chicago is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Chicago to Santarém?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santarém with an airline and back to Chicago with another airline. Booking your flights between Chicago and STM can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Santarém?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santarém from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

Cheap Flights from Chicago to Santarém | KAYAK

ORD - STM

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Cheapest round-trip

$726

Multiple Airlines

Sun 2/1Sat 2/28

ORD - STM • 3 stops

Cheapest one-way

Multiple Airlines

Wed 11/12

ORD - STM • multi-stop

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Santarém!

Flight Deals

Cheap Flights from Chicago to Santarém (ORD-STM)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Santarém that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Chicago to Santarém

Sun, Feb 1 - Sat, Feb 28

6:57 pm - 10:55 pmORD-STM

24h 58m3 stops

4:00 am - 9:16 amSTM-ORD

32h 16m2 stops

$726Multiple Airlines

Find Deal

Sun, Feb 1 - Sat, Feb 28

8:59 am - 2:15 pmORD-STM

26h 16m2 stops

4:00 am - 9:16 amSTM-ORD

32h 16m2 stops

$829Multiple Airlines

Find Deal

Sun, Feb 1 - Sun, Mar 1

6:57 pm - 10:55 pmORD-STM

24h 58m3 stops

10:20 pm - 7:45 pmSTM-ORD

24h 25m3 stops

$861Multiple Airlines

Find Deal

Sun, Feb 1 - Sun, Mar 1

6:57 pm - 10:55 pmORD-STM

24h 58m3 stops

10:20 pm - 8:20 pmSTM-ORD

25h 00m2 stops

$885Multiple Airlines

Find Deal

Sun, Feb 1 - Sat, Feb 28

6:57 pm - 10:55 pmORD-STM

24h 58m3 stops

4:00 am - 11:27 amSTM-ORD

34h 27m3 stops

$909Multiple Airlines

Find Deal

Sun, Feb 1 - Sun, Mar 1

8:59 am - 2:15 pmORD-STM

26h 16m2 stops

10:20 pm - 8:20 pmSTM-ORD

25h 00m2 stops

$940Multiple Airlines

Find Deal

Wed, Feb 18 - Sun, Feb 22

3:03 pm - 1:35 pmORD-STM

43h 32m2 stops

2:45 pm - 11:07 pmSTM-ORD

35h 22m3 stops

$1,235GOL

Find Deal

Wed, Feb 18 - Sun, Feb 22

3:03 pm - 1:35 pmORD-STM

43h 32m2 stops

2:45 pm - 9:02 amSTM-ORD

21h 17m3 stops

$1,236GOL

Find Deal

Wed, Feb 18 - Sun, Feb 22

9:25 am - 2:00 pmORD-STM

25h 35m3 stops

2:45 pm - 12:08 pmSTM-ORD

24h 23m3 stops

$1,297GOL

Find Deal

Wed, Feb 18 - Sun, Feb 22

5:26 pm - 1:35 pmORD-STM

41h 09m3 stops

2:45 pm - 9:21 pmSTM-ORD

33h 36m3 stops

$1,314GOL

Find Deal

Useful Info

Cheapest flight	$726

Flight from Chicago to Santarém

When to book flights from Chicago to Santarém

Are your dates flexible? Find out the best times to travel from Chicago to Santarém based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Chicago O'Hare Intl Airport to Santarém?
In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Santarém was $726 for a round-trip ticket.
Do I need a passport to fly between Chicago and Santarém?
Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Santarém.
Which aircraft models fly most regularly from Chicago to Santarém?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Chicago to Santarém?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Santarém.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Santarém?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santarém from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Chicago to Santarém?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santarém with an airline and back to Chicago with another airline. Booking your flights between Chicago and STM can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Santarém?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santarém from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Chicago to Santarém

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

Chicago (ORD)

Santarém (STM)

ORD - STM

$726 Find Cheap Flights from Chicago to Santarém

KAYAK searches hundreds of travel sites at once for deals on flights to Santarém

Everything you should know

Cheap Flights from Chicago to Santarém (ORD-STM)

Recent round-trip flight deals from Chicago to Santarém

Recent one-way flight deals from Chicago to Santarém

Good to know

When to book flights from Chicago to Santarém

FAQs for booking Chicago to Santarém flights

What is the cheapest flight from Chicago O'Hare Intl Airport to Santarém?

In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Santarém was $726 for a round-trip ticket.

Do I need a passport to fly between Chicago and Santarém?

Yes, you'll most likely have to show a valid passport before boarding the plane in Chicago and on arrival in Santarém.

Which aircraft models fly most regularly from Chicago to Santarém?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Chicago to Santarém?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Santarém.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Santarém?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santarém from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Chicago to Santarém?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Santarém with an airline and back to Chicago with another airline. Booking your flights between Chicago and STM can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Santarém?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Santarém from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Chicago to Santarém

Information on your arrival and departure airports

Cabin class types available on flights to Santarém

Complete your trip to Santarém with a hotel stay or car rental

Find direct flights to and from Chicago and Santarém

Flights to other popular destinations

Flights from domestic origins to Santarém

Choose which airport to fly into in Chicago