Cheap Flights from Chicago to Siem Reap–Angkor

Compare Chicago to Siem Reap–Angkor flight deals

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Flight deals from Chicago to Siem Reap–Angkor Airport

Looking for a cheap last-minute deal or the best return flight from Chicago to Siem Reap–Angkor Airport? If you want to travel next month, return fares start from R 18,442. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Siem Reap–Angkor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Siem Reap–Angkor flights are currently cheapest in March.

Chicago to Siem Reap–Angkor : Alternative routes

Compare routes from Chicago to Siem Reap below. You may find an airport to fly into that's cheaper, faster, or easier than Siem Reap–Angkor .

Chicago to Siem Reap: Flight information

The things to know before you go.
Cheapest flight foundR 7,659
Cheapest month to flyMarch

Finding cheap flights from Chicago to Siem Reap–Angkor : Frequently asked questions

The best price we found for a return flight from Chicago to Siem Reap–Angkor is R 18,442. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to Siem Reap–Angkor . But we found flights with one stop from R 18,442.
As of March 2026, there are no flights flying from Chicago to Siem Reap–Angkor .
The cheapest month to fly from Chicago to Siem Reap–Angkor is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Siem Reap–Angkor Airport on Monday, 6 April 2026.
No airlines currently offer direct flights between Chicago and Siem Reap–Angkor Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Siem Reap–Angkor but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Siem Reap is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Siem Reap–Angkor is Air India .

Travelling from Chicago to Siem Reap-Ankor International Airport (SAI): What you need to know

  • Set your travel plans in motion by working out where you'll board your flight from Chicago to Siem Reap-Ankor International Airport (SAI). O'Hare International Airport (ORD) and Chicago Midway International Airport (MDW) are the two main airports in Chicago.

  • The timezone in Siem Reap is UTC+7, which is 12 hours ahead of Chicago. Siem Reap-Ankor International Airport is located in Siem Reap.

  • Leave enough time to catch your flight from Chicago to SAI. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • With more travellers during peak seasons, it's smart to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will help you deal with any delays.

Airports in Chicago

O'Hare International Airport (ORD)

  • Located around 40 kilometres from the centre of Chicago, ORD can be reached in about 35 minutes by car (depending on traffic). The journey by public transport takes roughly 55 minutes.

  • Want a relaxed start to your journey? Stay near O'Hare International Airport. Whether you have an early flight from Chicago to Siem Reap-Ankor International Airport or prefer not to rush, these hotels are the answer:

  • Of the flights that depart from O'Hare International Airport, 74.85% land on time at their destination.

  • ORD is located at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is around 19 kilometres from central Chicago. It'll take 20 minutes or so to get to the airport by car from the city centre. Public transport takes approximately 45 minutes.

  • Start your holiday early with an extra night away from home. Before catching your Chicago to SAI flight, stay in one of these hotels near Chicago Midway International Airport:

  • 77.88% of flights leaving Chicago Midway International Airport stick to their scheduled arrival time.

  • You'll find MDW at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • The journey to RFD from the centre of Chicago is around 4 hours 15 minutes by public transport. If you prefer to travel by car, it'll take you roughly 1 hour 25 minutes to cover the 137 kilometres or so.

  • Relax in bed for a little longer and still make your Chicago to Siem Reap-Ankor International Airport flight without having to rush. These accommodation options near Chicago Rockford International Airport make getting to the terminal a breeze if you're setting off early:

  • The on-time performance record of RFD is 76.19%. To put it simply, that's how frequently flights that depart this airport reach their final stop as planned.

  • You'll find Chicago Rockford International Airport at 2 Airport Cir.

About Siem Reap-Ankor International Airport (SAI)

  • Get off your flight from Chicago to Siem Reap-Ankor International Airport and be sprawled out in your hotel bed shortly after. If you're looking for a comfortable option a quick drive from SAI, make your way to Chansor Community Homestay 18.

How to find the cheapest flights from Chicago to Siem Reap-Ankor International Airport (SAI)

  • Right now, R 7,659 is the lowest price we've found for a one-way ticket from Chicago to Siem Reap-Ankor International Airport. The cheapest price for a return flight is R 18,442. Remember fares may change due to availability at the time of booking.

  • Booking in advance is often the key to scoring a cheap flight from Chicago to SAI. Fares tend to rise as demand increases, so the closer your departure date, the more you'll likely spend.

  • If you have some flexibility with your travel dates, try using the 'Whole month' tool. It'll give you the lowest price across every month when searching for your Chicago to Siem Reap-Ankor International Airport ticket.

  • Save time searching for cheap plane tickets from Chicago to SAI by creating a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Save on your flight from Chicago to Siem Reap-Ankor International Airport by using the search filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Chicago to Siem Reap-Ankor International Airport (SAI)

  • Picture the kind of break you want when deciding your trip dates. April is the quietest month to go to Siem Reap. August is when most people book flights from Chicago to Siem Reap-Ankor International Airport (SAI), which may be ideal if you're chasing more action.

  • The warmest month in Siem Reap is March, with temperatures ranging between 22ºC (72ºF) and 38ºC (100ºF). Lock in your Chicago to SAI plane ticket then if you enjoy this type of weather.

  • Search for cheap tickets from Chicago to Siem Reap-Ankor International Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 18ºC (64ºF) and 33ºC (91ºF).

More about Siem Reap

Explore more of Cambodia

  • You've seen Siem Reap, now it's time to explore other parts of Cambodia. Journey about 209 kilometres south to Phnom Penh to tick off its top attractions. From Royal Palace to Tuol Sleng Genocide Museum and Genocide museum, your itinerary will be busy.

  • Ta Khmau is another standout destination in Cambodia and is around 225 kilometres south of Siem Reap. No journey is complete without experiencing មាត់ទន្លេតាខ្មៅ - Ta Khmao Riverside, Statue of Ta Khmau and AV.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.