Cheap Flights to Northwest

View AU$896 flight on Wed, 4 Feb. 2026Opens in a new window

Popular airlines

  • Frontier Airlines

    Frontier Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Alaska Airlines

    Alaska Airlines

  • JetBlue Airways

    JetBlue Airways

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Tickets to Northwest

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sun, 19 Oct. - Tue, 28 Oct.
SYD
Sydney
DEN
Denver
AU$1,450 Return, found 2 days ago
AU$1,450
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Sun, 19 Oct. from Sydney to Denver, returning Tue, 28 Oct., priced at AU$1,450 found 2 days ago
Alaska Airlines
Sat, 17 Jan. - Tue, 24 Feb.
SYD
Sydney
DEN
Denver
AU$1,479 Return, found 2 days ago
AU$1,479
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 17 Jan. from Sydney to Denver, returning Tue, 24 Feb., priced at AU$1,479 found 2 days ago
Air New Zealand
Mon, 25 Aug. - Fri, 29 Aug.
SYD
Sydney
DEN
Denver
AU$1,516 Return, found 3 days ago
AU$1,516
Return
found 3 days ago
Select Air New Zealand flight, departing Mon, 25 Aug. from Sydney to Denver, returning Fri, 29 Aug., priced at AU$1,516 found 3 days ago
Air Canada
Tue, 23 Sep. - Sun, 26 Oct.
SYD
Sydney
DEN
Denver
AU$1,584 Return, found 3 days ago
AU$1,584
Return
found 3 days ago
Select Air Canada flight, departing Tue, 23 Sep. from Sydney to Denver, returning Sun, 26 Oct., priced at AU$1,584 found 3 days ago
Jetstar
Sat, 18 Oct. - Fri, 24 Oct.
AVV
Melbourne
DEN
Denver
AU$1,602 Return, found 4 days ago
AU$1,602
Return
found 4 days ago
Select Jetstar flight, departing Sat, 18 Oct. from Melbourne to Denver, returning Fri, 24 Oct., priced at AU$1,602 found 4 days ago

Find the cheapest month to fly from Columbus (CMH) to Denver (DEN)

November is typically the cheapest month to fly

From AU$181 - AU$640 per traveller.

Graph displaying average flight prices per month

Northwest Flights

Have the time of your life in Northwest

Flying to Northwest is now easier than ever when you use Expedia to book your trip. We’ve got an extensive catalogue of Northwest flight deals, giving you the greatest number of options to choose from. Whether you prefer to fly on weekdays or weekends, in the morning or at night, a quick search on Expedia.com.au will help you find cheap tickets to Northwest in seconds. We even make it simple for you to stick with a certain airline if you’re trying to rack up frequent flyer points.

Tips for flying and packing light

If it’s been a while since you’ve travelled, you might be due for a refresher when it comes to flying. That’s where our helpful blog, Out There Starts Here, comes in. Wondering whether to pack for fine dining or more casual eats? Or whether you really need to bring a jacket? Written by seasoned travel experts, the articles on our blog provide you with the latest details about certain destinations, so you know just what to expect. Check out some of our recent articles for the smartest ways to see the sights.

Fly for less when you bundle airfare and accommodation

Our already low airfares are even more affordable when you bundle your flights with a stay at one of the hotels in Northwest. By booking all of your travel plans with us, you’ll save time and money, and enjoy the convenience of having all of your arrangements in one place.

Get the power of planning in the palm of your hand

Booking your trip to Northwest, Denver has never been easier than when you use our mobile app to plan your dream getaway. The Expedia App is available on both Android and iOS, allowing you to reserve flights and hotels at any time of day, no matter what kind of phone you use. You’ll also get exclusive offers, receive flight updates, and can earn extra points. Wherever you are, the Expedia App helps you get where you want to be.

Join the Expedia Rewards Program

If you enjoy the finer things in life, sign up for our rewards program to receive exclusive benefits when you book with us. Expedia Rewards opens the door to member-only deals, +VIP Access hotel benefits, and earning Expedia Rewards points, that you can redeem your way. You’ll also get access to Unreal Deals that could save you the price of a plane ticket to Northwest when bundled with your accommodation.

What are you waiting for?

Expedia.com.au helps you find cheap flights to Northwest AU$1,450. So why wait another second to begin planning your trip? Start your search right now, and you could be boarding the next Northwest-bound flight. Bon voyage!

Frequently asked questions

How do I find cheap flights to Northwest that have flexible change policies?
Search for low-cost seats to Northwest, then select "No change fee" underneath the "Flexible change policies" heading. It's that easy. We know that plans change and flexibility is important, so you can book with confidence with Expedia.
Which airlines fly to Northwest?
When you're ready to book your flight to or near Northwest, these well-known airlines look forward to welcoming you aboard:

  • United Airlines - 13 033 flights to or near Northwest each month, including 13 033 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6 339 flights to or near Northwest each month, including 6 339 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1 967 flights to or near Northwest each month, including 1 967 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Northwest?
Book well in advance, fly with budget airlines, use points or miles — there are plenty of ways! Another one is to make the most of Expedia's "flexible dates" feature. Search for your Northwest flight, then compare the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Northwest was AU$1,450.
How much is a flight to Northwest?
You could have picked up a round-trip ticket to Northwest from anywhere between AU$1,450 and AU$1,602 in the last seven days. For one-way trips departing from Sydney (SYD), the lowest price during this period was AU$896.
What are the most popular airports to fly into in Northwest?
Fly into Denver Intl. Airport (DEN) and enjoy everything that Northwest has to offer. As the region's main entry point, roughly 24 249 flights touch down here every month.
When is the cheapest time to fly to Northwest?
If you can be flexible with what day you travel to Northwest, try to leave early in the week. The most affordable day to take off is usually Tuesday, closely followed by Monday. Saturday is typically the most expensive day, with many holiday makers opting to fly on the weekend.
How much is a plane ticket to Northwest?
Seats ranged from just AU$1,450 to AU$1,602 over the last seven days. When you're ready to book, we're here to help find a low-cost flight to Northwest.
What months are the cheapest to book a flight to Northwest?
A cheap month to secure a great deal to Northwest is February, while prices are at a premium in December. Keep clear of this month if you're on a budget.
Flights to Northwest information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Return price
AU$1,450

Trending flights to Northwest

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sun, 19 Oct. - Tue, 28 Oct.
SYD
Sydney
DEN
Denver
AU$1,450 Return, found 2 days ago
AU$1,450
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Sun, 19 Oct. from Sydney to Denver, returning Tue, 28 Oct., priced at AU$1,450 found 2 days ago
*Available to Expedia members.