$103 Economy Roundtrip to Portland (DEN-PDX) in Sep from Denver

September departures from Denver International Airport (DEN) to Portland International Airport (PDX) benefit from moderate passenger loads and typically reliable weather. Expect several daily nonstop options; book 3–8 weeks in advance for best September fares. Early mornings and late evenings can yield lower prices and fewer delays. Pack a light layer for Portland’s cooler, occasionally rainy September weather and confirm carry-on and checked baggage rules with your carrier before departure. CTA: Check live DEN to PDX schedules and compare September fares now to lock in the best price.

Departing from Denver (DEN) FAQs

For a domestic flight from Denver International Airport (DEN) to Portland International Airport (PDX) in September, arrive at least 90 minutes before departure if you have carry-on only and 2 hours if you have checked luggage. September can bring moderate passenger volumes with business travelers and leisure passengers returning from late-summer trips, so allowing extra time for security (TSA) lines and possible tailwind-related schedule changes is wise.

Yes, multiple carriers typically operate nonstop flights between Denver International Airport (DEN) and Portland International Airport (PDX) during September, with several daily options. Airlines like Alaska Airlines, United Airlines, and Southwest often schedule direct flights on this route; check live schedules on airline websites or Google Flights for current September departure times.

Average one-way fares from Denver International Airport (DEN) to Portland International Airport (PDX) in September commonly range from $120 to $300 depending on booking lead time, airline, and demand. Book 3–8 weeks in advance to find the best deals and use fare alert tools or comparison sites to catch price drops for September travel.

Baggage policies vary by airline; Alaska Airlines, United Airlines, and Southwest each have different free carry-on and checked bag allowances and fees. For September trips, verify your carrier’s allowance on the airline’s website and consider prepaying checked bags to save. Also check for seasonal carry-on restrictions or overweight fees during busy travel periods.

Nonstop flight time from Denver International Airport (DEN) to Portland International Airport (PDX) is typically about 2 hours 20 minutes to 2 hours 40 minutes, depending on winds and routing in September. Allow additional time for boarding, taxi, and potential air traffic delays—check real-time flight status before you leave for the airport.

Denver International Airport (DEN) offers RTD A Line train service to downtown Denver, airport shuttles, rideshares, taxis, and car rentals year-round. In September, traffic is generally moderate; however, if you’re traveling during Broncos or college events, leave extra time. Pre-book shuttle or rideshare pick-ups and check DEN parking options for longer trips.

Arriving at Portland International Airport (PDX) in September offers pleasant weather, fewer summer crowds, and easy access to nearby cities like Vancouver (WA), Salem, and Hood River. Use TriMet's MAX Light Rail for economical downtown transfers, or rent a car to explore the Willamette Valley during harvest season. September is an excellent month for food and wine experiences—book restaurants and tours in advance. CTA: Reserve ground transport or a rental car from PDX now and plan your September Portland itinerary.

Arriving at Portland (PDX) FAQs

The MAX Light Rail (TriMet) provides a direct, affordable link from Portland International Airport (PDX) to downtown Portland and the Pearl District, taking about 35–40 minutes. In September, trains run frequently and the weather is typically mild, making the MAX an efficient choice; rideshares and taxis are available at designated curbside zones as well.

September at Portland International Airport (PDX) is generally mild with daytime highs around the mid-60s to low-70s °F (18–22°C) and lower chances of heavy rain than later fall months. Pack a light rain jacket for occasional showers and layers for cooler mornings and evenings, especially if you plan day trips to the Columbia River Gorge or Willamette Valley.

From Portland International Airport (PDX) you can easily reach downtown Portland, Vancouver (WA), Salem, Hood River, and the Willamette Valley wine country. September is harvest season in the Willamette Valley and a great time for day trips, scenic drives along the Columbia River Gorge, and visiting coastal destinations like Cannon Beach.

Portland International Airport (PDX) offers rental car counters, baggage services, lounges, and a comprehensive ground transportation center that operate year-round. In September, seasonal visitor services increase due to wine country tourists and food festival attendees; check PDX.com for updated service hours and transportation options.

As of September, major U.S. airports like Portland International Airport (PDX) follow CDC and TSA guidance; specific airline or local health requirements may vary. Travelers should check current health advisories, mask policies, and any testing or vaccination recommendations prior to arrival, and carry documentation if required by a connecting airline or destination.

1.0.2605.11

September Events Near Portland International Airport (PDX) — Festivals & Activities

September in the Portland region brings harvest-season activities in the Willamette Valley—ideal for wine tasting and vineyard tours—and a variety of food and cultural events. Food-focused festivals and pop-up dinners often occur in early fall, and outdoor activities like hiking in the Columbia River Gorge and coastal day trips to Cannon Beach are popular. Check local event calendars and book tours and reservations early for September weekend travel. CTA: Browse Portland September event listings and reserve tickets or tours now.

Best Time to Fly DEN to PDX — September Travel Advice

For September travel from Denver International Airport (DEN) to Portland International Airport (PDX), fly midweek (Tuesday–Thursday) and prefer early-morning departures to avoid cascading delays. Book 3–8 weeks in advance to secure competitive fares and select flights arriving in Portland before sunset for easier ground transport. September’s mild weather minimizes weather-related disruptions compared with winter months. CTA: Check multi-date search tools to compare midweek September fares from DEN to PDX.

Direct vs Connecting Flights from DEN to PDX in September — What to Choose?

Nonstop flights from Denver International Airport (DEN) to Portland International Airport (PDX) offer the fastest, most convenient option—typically 2h20–2h40—and are preferred for short trips. Connecting flights can be cheaper but add risk of missed connections and longer travel times, especially through busy hubs. In September, when weather is generally cooperative, nonstop options are often worth the modest fare premium for convenience. CTA: Compare nonstop and one-stop itineraries for your September travel dates to find the optimal balance of price and travel time.

Airline Comparison for DEN→PDX in September — Alaska, United & Southwest

Alaska Airlines often offers a strong route network to the Pacific Northwest and reliable schedules between Denver International Airport (DEN) and Portland International Airport (PDX) in September, with good loyalty recognition on Alaska’s Mileage Plan. United Airlines provides multiple daily options and convenient connections if you need flexibility with United’s MileagePlus benefits. Southwest Airlines can offer competitive prices and two-free-checked-bags policy, which may lower total travel costs for luggage-heavy travelers. Review fare rules, change policies, and loyalty perks for September trips to choose the airline that best fits your priorities. CTA: Check each airline’s September schedules and promotions before booking.

Seasonal Travel Tips for DEN to PDX in September — Packing, Weather & Transit

Pack a light waterproof jacket, layers for cool mornings and evenings, and comfortable walking shoes for cities and vineyards when traveling from Denver International Airport (DEN) to Portland International Airport (PDX) in September. Expect Denver departures to be warm to mild; arrivals at PDX are generally comfortable with occasional rain. Book winery tours and popular restaurants in the Willamette Valley and Portland neighborhoods in advance due to harvest-season demand. For airport transit, use the RTD A Line at DEN and TriMet MAX at PDX for efficient, budget-friendly transfers. CTA: Prepare your September itinerary and packing list now to make the most of travel between DEN and PDX.

Flight Time & Schedules for Denver International Airport (DEN) to Portland International Airport (PDX) in September

Nonstop flights from Denver International Airport (DEN) to Portland International Airport (PDX) typically take about 2 hours 20 minutes to 2 hours 40 minutes in September. Major carriers often operate multiple daily nonstops: early morning departures (~6:00–9:00), midday (~11:00–14:00), and evening (~17:00–21:00). One-stop itineraries via west-coast or mountain hubs can extend total travel time to 4–6+ hours. For the most up-to-date September schedules, check airline websites or aggregated flight search engines and set notifications for schedule changes.

How to Find Cheap Flights from Denver International Airport (DEN) to Portland International Airport (PDX) in September

To find the cheapest flights from Denver International Airport (DEN) to Portland International Airport (PDX) in September, book about 3–8 weeks before departure and target midweek travel (Tuesdays and Wednesdays) when fares are often lowest. Use fare-alert tools and flexible-date searches, and monitor sales from Alaska Airlines, United Airlines, and Southwest Airlines. Consider early-morning or late-evening flights for better prices and avoid weekends, especially holiday-adjacent dates. CTA: Set a fare alert now to catch September DEN to PDX price drops.

Best Flights starting from $103

Sat, Sep 12

Roundtrip

Tue, Sep 29

Sat, Sep 12

Roundtrip

Fri, Sep 25

Wed, Sep 9

Roundtrip

Wed, Sep 23

Sat, Sep 19

Roundtrip

Wed, Oct 7

Mon, Sep 14

Roundtrip

Mon, Oct 5

Wed, Sep 30

Roundtrip

Wed, Oct 14

Sun, Sep 27

Roundtrip

Sat, Oct 10

Mon, Sep 28

Roundtrip

Sun, Oct 11

Thu, Sep 10

Roundtrip

Wed, Sep 23

Sun, Sep 6

Roundtrip

Tue, Sep 22

Sat, Sep 26

Roundtrip

Fri, Oct 9

Other Options for This Route

Other Destinations

Flights from Other Cities

Departing from Denver (DEN) FAQs

How early should I arrive at Denver International Airport (DEN) for a domestic flight to Portland in September?

Are there nonstop flights between Denver International Airport (DEN) and Portland International Airport (PDX) in September?

What is the average fare for flights from Denver International Airport (DEN) to Portland International Airport (PDX) in September?

What is the baggage policy for common carriers flying DEN to PDX in September?

How long is the flight from Denver International Airport (DEN) to Portland International Airport (PDX) in September?

What ground transportation options are recommended from Denver International Airport (DEN) for a September departure?

Arriving at Portland (PDX) FAQs

What is the best way to get from Portland International Airport (PDX) to downtown Portland in September?

What should I expect weather-wise when arriving at Portland International Airport (PDX) in September?

What nearby destinations can I access from Portland International Airport (PDX) in September?

Are there facilities and services at Portland International Airport (PDX) useful for September arrivals?

What COVID-19 or health considerations should travelers arriving at PDX in September be aware of?

September Events Near Portland International Airport (PDX) — Festivals & Activities

Best Time to Fly DEN to PDX — September Travel Advice

Direct vs Connecting Flights from DEN to PDX in September — What to Choose?

Airline Comparison for DEN→PDX in September — Alaska, United & Southwest

Seasonal Travel Tips for DEN to PDX in September — Packing, Weather & Transit

Flight Time & Schedules for Denver International Airport (DEN) to Portland International Airport (PDX) in September

How to Find Cheap Flights from Denver International Airport (DEN) to Portland International Airport (PDX) in September

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 3

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 4

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 5

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 6

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 7

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 8

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 9

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 10

Flight Options & Prices:

Cheap economy Flights: DEN to PDX in September - Route 11

Flight Options & Prices:

Why Choose Economy Class Flights from Denver (DEN) to Portland (PDX)?