Find cheap flights from Illinois to Siem Reap

REP

Find cheap flights from Illinois to Siem Reap

Search hundreds of travel sites at once for deals on flights to Siem Reap

Round-trip
Economy
Boston (BOS)
Siem Reap
Thu 5/13
Thu 5/20
Any month
Compare vs. KAYAK |
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Good to know

Low season

AprilBest time to beat the crowds with an average 5% drop in price.

High season

DecemberMost popular time to fly with an average 13% increase in price.

Average price round-trip

$827(avg. price over the last 2 weeks)

Good deal round-trip

$486or less

Good deal one-way

$440or less

FAQs for booking flights from Illinois to Siem Reap

How does KAYAK find such low prices on flights from Illinois to Siem Reap?

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

What is the Hacker Fare option on flights from Illinois to Siem Reap?

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

COVID-19 information

Safety measures for airlines flying from Illinois to Siem Reap

Airlines flying from Illinois to Siem Reap have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Illinois to Siem Reap

Mandatory masks

Masks required on board, masks provided on flights from Illinois to Siem Reap

Social distancing seating

Middle seats unavailable to book on flights from Illinois to Siem Reap

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Illinois to Siem Reap

Book cheap flights from Illinois to Siem Reap

Recent round-trip flight deals

7/26
Mon
2 stops
Multiple Airlines
57h 25m
ORD - REP
8/5
Thu
2 stops
Multiple Airlines
42h 42m
REP - ORD
7/26
Mon
3 stops
Multiple Airlines
52h 05m
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8/5
Thu
3 stops
Multiple Airlines
55h 45m
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6/23
Wed
3 stops
Multiple Airlines
39h 50m
ORD - REP
7/8
Thu
2 stops
Multiple Airlines
26h 40m
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7/25
Sun
2 stops
Multiple Airlines
28h 30m
ORD - REP
8/5
Thu
2 stops
Multiple Airlines
39h 10m
REP - ORD
7/26
Mon
3 stops
Multiple Airlines
49h 05m
ORD - REP
8/5
Thu
2 stops
Multiple Airlines
26h 40m
REP - ORD
6/23
Wed
2 stops
Multiple Airlines
34h 35m
ORD - REP
7/8
Thu
2 stops
Multiple Airlines
26h 40m
REP - ORD
6/12
Sat
3 stops
Multiple Airlines
49h 05m
ORD - REP
6/24
Thu
3 stops
Multiple Airlines
56h 50m
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6/15
Tue
3 stops
Multiple Airlines
49h 05m
ORD - REP
6/24
Thu
3 stops
Multiple Airlines
56h 50m
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6/14
Mon
3 stops
Multiple Airlines
57h 10m
ORD - REP
6/23
Wed
3 stops
Multiple Airlines
56h 50m
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