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Cheap Flights to Union: Union Flight Deals

View €1,116 flight on Thu, 24 Sept 2026Opens in a new window

Flight 1

Popular airlines to Union

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Cheap round-trip flights to Union

Prices were available within the past 7 days and start at €1,116 for one-way flights and €1,173 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
American Airlines
American Airlines
British Airways
Finnair

Frequently asked questions

What is the name of Union's airport?
Boise Airport (BOI) is the main airport in Union.
How many airlines fly to Union?
Union is serviced by 7 airlines from 24 airports across the globe.
Which airlines fly to Union?
Alaska Airlines and Delta operate the most flights to Union. One of the most preferred ways to get there is on an Alaska Airlines flight from Seattle.
How many nonstop flights are there to Union?
With 529 nonstop flights each week, you'll be landing in Union before you can ask, "Are we there yet?"
Where are the most popular flights to Union departing from?
Flights to Union from Seattle, Denver and Phoenix airports are very popular.
How long is the flight to Union Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to enjoy. From Seattle to Union, the average flight time is 1 hour and 14 minutes. From Denver it's more or less 2 hours and 8 minutes, and from Phoenix it's 2 hours and 18 minutes.
How to book the cheapest flight to Union?
We've all come across those fortunate travellers who somehow get super cheap airfares wherever they go. Eager to know how to do it for your Union holiday? Don't wait until the last possible moment to secure your flight. Also, shop around and compare your options. If your destination has several airports, you may be able to nab a great price by flying into one a little further out. And finally, remember that it's first in, best dressed. Know what a typical airfare costs and have your credit card ready to snap up a ticket as soon as you spot a bargain. The sweetest deals never last long.
Do you have any tips for my flight to Union?
No matter where you're coming from, flying can be a pleasant experience if you've planned ahead. We've made a list of handy tips and tricks that will help get your Union holiday started on the right note. What to pack in your hand luggage:
  • The trick to having a worry-free flight experience is to pack ahead. First up, the essentials: passport, travel documents, credit cards and important medications. Next, take on board items that'll help pass the time, like some electronic gadgets or a juicy novel. It's also smart to bring your chargers, a quality neck pillow and a pair of earplugs. And of course, don't forget to chuck in toiletries like a toothbrush, cleansing wipes and a spare set of clothes.
Do not pack the following items in your hand luggage:
  • Double-check that you don't have a Swiss Army knife hiding in one of the compartments of your hand luggage. Other restricted items include explosive or flammable substances, like aerosols and matches, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 millilitres).
What to wear on a flight:
  • Your main aim is to feel as comfortable as you can. Go for easy-to-remove footwear, dress in loose, breathable clothing and don't forget to bring a sweater in case it gets chilly in the cabin.
  • Deep vein thrombosis (DVT) is a risk on long-distance flights. It results from blood clots forming due to poor circulation, so do some gentle foot and leg exercises in your seat and consider wearing compression tights or socks.
How to get through airport security fast when flying to Union?
The secret is to be organised before you reach the security gate. That way, you'll be hopping onto that plane to Union in no time flat. Follow these tips and get your holiday off to a fantastic start:
  • Keep your passport and travel documents at hand. They're the first items you'll be asked to show at airport security.
  • The X-ray machine is up next. Remove anything on you that is likely to beep. This includes items like earphones or headphones, as well as your coat or jacket. They'll need to be placed on the conveyor belt for screening.
  • Electronic devices like phones and laptops will also need to go on a tray for inspection. No need to worry though, you'll be back online soon enough.
  • Any liquids or gels, such as lip balm or cologne, that you want to take on board must be no greater than 3.4 ounces (100 millilitres). Also, everything must fit inside a quart-size (one litre), clear zip-close bag.
  • Lightweight sneakers are a sensible footwear choice as you're less likely to be asked to remove them when going through security. Boots and other heavy-style shoes are often subjected to additional screening.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, put them in your checked suitcase. They won't be allowed in the cabin.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Union. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Union. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Union, or are just on the lookout for the best flights to Union, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Union to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Walla Walla Regional
Destination airport IATA code
ALW
Destination city name
Walla Walla
Return price
€1,173
*Available to Expedia members.