Cheap Flights from Seattle (SEA) to Waukegan (UGN)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Waukegan, IL (UGN-Waukegan Regional)

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Alternative airports near Waukegan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city center is 41 minutes. Flights from $182
ORD
O'Hare Intl.
Cheapest
Average driving time to city center41 min
Flights from $182

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN) cost?
Get a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN)?
Flying in is a good way to save, as it's the cheapest month for flights between SEA and UGN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SEA to UGN. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to UGN?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Chicago from Seattle - Tacoma Intl. Airport (SEA)?
If you're catching a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Chicago, you'll touch down at either O'Hare Intl. Airport (ORD) or Midway Intl. Airport (MDW).
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN) last-minute?
Booking your flight from SEA to UGN just before your journey is generally more expensive. But if there's some wiggle room with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a SEA to UGN flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to UGN flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Just pick your flights and select from our extensive range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Waukegan Regional Airport (UGN)?
If you booked your SEA to UGN flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Waukegan Regional
Distance
1705 mi

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Book with confidence

Seattle to Waukegan Flights

The cheapest times to fly from Seattle to Waukegan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Waukegan are during the month of . You can find some of the cheapest flights from Seattle to Waukegan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Waukegan

Sunday is one of the best days to book for cheap flights from Seattle to Waukegan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Waukegan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Waukegan in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Waukegan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Waukegan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Waukegan Flights

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