Title: CA $467 Cheap Flights from Portland (PDX) to Lisbon (LIS) - Expedia.ca ![Alfama Lisbon Cityscape](https://images.trvl-media.com/place/2080/038736b5-861a-47d0-a0cf-3fec8d44eb84.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/2080/038736b5-861a-47d0-a0cf-3fec8d44eb84.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $467 Cheap Flights from Portland (PDX) to Lisbon (LIS) [View CA $467 flight on Sat, May 9, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:PDX,to:LIS,departure:09/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:466.43&airProductToken=AQpmCjEIxpIBEgM2NjQY77gBIIopKKbHjAMw7cqMAzhYQABYAWoFTElHSFRyCFhKMVFVU0xUCjEIxpIBEgM1NTAYiikgi5IBKP7LjAMwgs6MAzhYQAFYAWoFTElHSFRyCFhKMVFVU0xUEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Portland International Airport (PDX) to Humberto Delgado Airport (LIS) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_IB.svg) Iberia [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AY.svg) Finnair [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AY"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_VS.svg) Virgin Atlantic [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EI.svg) Aer Lingus [](https://www.expedia.ca/Flights-Search?leg1=from:PDX,to:LIS,departure:28/02/2026TANYT&leg2=from:LIS,to:PDX,departure:07/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EI"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Portland (PDX) to Lisbon (LIS) Prices were available within the past 7 days and start at CA $467 for one-way flights and CA $1,519 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,519 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1518.53&airProductToken=AQqnAQo-CMGGARIEMzM0MRjvuAEgsnEo186MAzDEz4wDOFNAAFgBagVCQVNJQ3IIU0tYNDZVQlF6CgjVggESBDMzNDEKMQjBhgESAzc0MhiycSCYzgEo2NGMAzCG1IwDOFNAAVgBagVCQVNJQ3IIU0tYNDZVQlEKMgjBhgESAzgxMBiYzgEgi5IBKM_UjAMw-NeMAzhTQAFYAWoFQkFTSUNyCFNLWDQ2VUJRCqUBCjEIwYYBEgM4MTMYi5IBIJhdKPGtjgMwrrGOAzhTQABYAWoFQkFTSUNyCFNIVzI2VUJRCjAIwYYBEgM3NTkYmF0gsnEolLOOAzCSto4DOFNAAVgBagVCQVNJQ3IIU0hXMjZVQlEKPgjBhgESBDMzMzIYsnEg77gBKIG3jgMw97eOAzhTQAFYAWoFQkFTSUNyCFNIVzI2VUJRegoI1YIBEgQyMzg0EgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Jun 1 - Thu, Jun 4 PDX Portland LIS Lisbon CA $1,606 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:01/06/2026TANYT&leg2=from:LIS,to:PDX,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1605.43&airProductToken=AQqPAQovCMGmARIDNDM2GO-4ASDBkwEo_syOAzDMz44DOFFAAFgBagNCU0NyB1UyQlNDQVMKLQjTaBIDMjIwGMGTASDvWCiR0o4DMMLUjgM4VUABWAFqA0JTQ3IHVTJCU0NBUwotCNNoEgMxMjgY71ggi5IBKP7UjgMwhdaOAzhVQAFYAWoDQlNDcgdVMkJTQ0FTEgoIARABGAEqAlM0GAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,635 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1634.83&airProductToken=AQqlAQo-CMGGARIEMzM0MxjvuAEgsnEo7s2MAzDbzowDOFdAAFgBagVCQVNJQ3IIV0tYNDZVQlF6CgjVggESBDMzNDMKMAjBhgESAzc1OBiycSCYXSjC0IwDMKDTjAM4V0ABWAFqBUJBU0lDcghXS1g0NlVCUQoxCMGGARIDODEyGJhdIIuSASiJ1IwDMJTXjAM4V0ABWAFqBUJBU0lDcghXS1g0NlVCUQqlAQoxCMGGARIDODEzGIuSASCYXSjxrY4DMK6xjgM4U0AAWAFqBUJBU0lDcghTSFcyNlVCUQowCMGGARIDNzU5GJhdILJxKJSzjgMwkraOAzhTQAFYAWoFQkFTSUNyCFNIVzI2VUJRCj4IwYYBEgQzMzMyGLJxIO-4ASiBt44DMPe3jgM4U0ABWAFqBUJBU0lDcghTSFcyNlVCUXoKCNWCARIEMjM4NBIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,642 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1641.53&airProductToken=AQqnAQo-CMGGARIEMzM0MRjvuAEgsnEo186MAzDEz4wDOFdAAFgBagVCQVNJQ3IIV0tYNDZVQlF6CgjVggESBDMzNDEKMQjBhgESAzc0MBiycSCYzgEo6tCMAzCW04wDOFdAAVgBagVCQVNJQ3IIV0tYNDZVQlEKMgjBhgESAzgxMBiYzgEgi5IBKM_UjAMw-NeMAzhXQAFYAWoFQkFTSUNyCFdLWDQ2VUJRCqUBCjEIwYYBEgM4MTMYi5IBIJhdKPGtjgMwrrGOAzhTQABYAWoFQkFTSUNyCFNIVzI2VUJRCjAIwYYBEgM3NTkYmF0gsnEolLOOAzCSto4DOFNAAVgBagVCQVNJQ3IIU0hXMjZVQlEKPgjBhgESBDMzMzIYsnEg77gBKIG3jgMw97eOAzhTQAFYAWoFQkFTSUNyCFNIVzI2VUJRegoI1YIBEgQyMzg0EgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,644 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1644.00&airProductToken=AQpoCjIIwoIBEgMyNjYY77gBIOuJASi21IwDMPDYjAM4UUAAWAFqBU5PQkFHcghRS1g0VDFCVgoyCMKCARIDNTA4GOuJASCLkgEoo9yMAzDN3YwDOFFAAVgBagVOT0JBR3IIUUtYNFQxQlYKaAoyCMKCARIDNTAxGIuSASDriQEo2K2OAzCCr44DOFFAAFgBagVOT0JBR3IIUUhXNFQxQlYKMgjCggESAzI2NxjriQEg77gBKPCvjgMwyLSOAzhRQAFYAWoFTk9CQUdyCFFIVzRUMUJWEgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,659 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1658.23&airProductToken=AQqdAQozCMGGARIEODY1MRjvuAEguI0BKIbQjAMw1dCMAzhTQABYAWoFQkFTSUNyCFNLWDQ2VUJRCjIIwYYBEgMxMTQYuI0BIJjOASiw0YwDMMDTjAM4U0ABWAFqBUJBU0lDcghTS1g0NlVCUQoyCMGGARIDODEwGJjOASCLkgEoz9SMAzD414wDOFNAAVgBagVCQVNJQ3IIU0tYNDZVQlEKpwEKMgjBhgESAzgxMRiLkgEgmM4BKNCujgMwq7KOAzhXQABYAWoFQkFTSUNyCFdIVzI2VUJRCjEIwYYBEgM3NDUYmM4BILJxKMazjgMwmraOAzhXQAFYAWoFQkFTSUNyCFdIVzI2VUJRCj4IwYYBEgQzMzMyGLJxIO-4ASiBt44DMPe3jgM4V0ABWAFqBUJBU0lDcghXSFcyNlVCUXoKCNWCARIEMjM4NBIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Mon, Jun 1 - Thu, Jun 4 PDX Portland LIS Lisbon CA $1,671 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:01/06/2026TANYT&leg2=from:LIS,to:PDX,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1670.03&airProductToken=AQqPAQovCMGmARIDNDM2GO-4ASDBkwEo_syOAzDMz44DOFFAAFgBagNCU0NyB1UyQlNDQVMKLQjTaBIDMjIwGMGTASDvWCiR0o4DMMLUjgM4VUABWAFqA0JTQ3IHVTJCU0NBUwotCNNoEgMxMjgY71ggi5IBKP7UjgMwhdaOAzhVQAFYAWoDQlNDcgdVMkJTQ0FTEgoIARABGAEqAlM0GAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sun, May 10 - Sat, May 30 PDX Portland LIS Lisbon CA $1,709 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:10/05/2026TANYT&leg2=from:LIS,to:PDX,departure:30/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1708.13&airProductToken=AQqdAQozCMGGARIEODY1MRjvuAEguI0BKIbQjAMw1dCMAzhTQABYAWoFQkFTSUNyCFNLWDQ2VUJRCjIIwYYBEgMxMTQYuI0BIJjOASiw0YwDMMDTjAM4U0ABWAFqBUJBU0lDcghTS1g0NlVCUQoyCMGGARIDODEwGJjOASCLkgEoz9SMAzD414wDOFNAAVgBagVCQVNJQ3IIU0tYNDZVQlEKtQEKPgjBhgESBDkzNTcYi5IBIKUEKPWqjgMwrqyOAzhWQABYAWoFQkFTSUNyCFZIVzI2VUJRegoIzJABEgQ5MzU3Cj4IwYYBEgQ5MTAxGKUEILiNASioro4DMICzjgM4VkABWAFqBUJBU0lDcghWSFcyNlVCUXoKCMyQARIEOTEwMQozCMGGARIEODY1NBi4jQEg77gBKNK0jgMwnbWOAzhWQAFYAWoFQkFTSUNyCFZIVzI2VUJREgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Mon, Jun 1 - Thu, Jun 4 PDX Portland LIS Lisbon CA $2,372 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:01/06/2026TANYT&leg2=from:LIS,to:PDX,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2371.73&airProductToken=AQqWAQotCMJsEgI5NhjvuAEgwZMBKPDNjgMwsNCOAzhQQABYAWoCQU5yCFBDMkFVRVk1Ci4IwmwSBDEwMTcYwZMBIKlRKIXRjgMw1NGOAzhQQAFYAWoCQU5yCFBDMkFVRVk1CjUIwmwSBDY3NTMYqVEgi5IBKP3WjgMwq9qOAzhNQAFYAXIITUgwQ0xJMDR6CQjUoAESAzIxMApnCjYIwmwSBDY3NjgYi5IBIMGTASih6Y4DMO3sjgM4VUAAWAFyCFVLMEJTSTA0egkI1KABEgMyMTUKLQjCbBICOTUYwZMBIO-4ASip944DMKX6jgM4WkABWAFqAkFOcghaSTRBVUVZNRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Mon, Jun 1 - Thu, Jun 4 PDX Portland LIS Lisbon CA $3,138 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:PDX,to:LIS,departure:01/06/2026TANYT&leg2=from:LIS,to:PDX,departure:04/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:3137.43&airProductToken=AQqqAQpACMmEARIENzI3MRjvuAEgi7gBKNXIjgMw58mOAzhBQABYAWoGT1BUSU1BcghWSFg0RDBNNXoKCMGmARIEMDQ4MAoyCMmEARIDMzUyGIu4ASCMGCiSy44DMKbQjgM4VkABWAFqBk9QVElNQXIIVkhYNEQwTTUKMgjJhAESAzUzNxiMGCCLkgEohNOOAzDZ044DOFZAAVgBagZPUFRJTUFyCFZIWDREME01CqgBCjIIyYQBEgM1MzAYi5IBIIwYKN3kjgMwsuWOAzhWQABYAWoGT1BUSU1BcghWSFg0RDBNNQoxCMmEARIDMzU1GIwYILJxKJvmjgMwjuyOAzhWQAFYAWoGT1BUSU1BcghWSFg0RDBNNQo_CMmEARIENzI4NRiycSDvuAEotO2OAzCk7o4DOFNAAVgBagZPUFRJTUFyCFZIWDREME01egoIwaYBEgQ3Mjg1EgoIARABGAEqAklCGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.ca/deals?rfrr=FTG_SPRING_PROMO_) ## Find the cheapest month to fly from Portland (PDX) to Lisbon (LIS) ### February is typically the cheapest month to fly From CA $679 - CA $1,387 per traveller. __Flight from Portland to Lisbon (PDX - LIS) route information__ | Origin airport | Portland Intl. | | ------------------- | ---------------- | | Destination airport | Humberto Delgado | | Roundtrip price | CA $1,519 | | Distance | 8478 km | ## Portland to Lisbon District Flights **The easy way to book your flights from Portland to Lisbon** With Expedia, it’s simple to find and book flights to Lisbon from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Humberto Delgado, too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to Lisbon today, tomorrow, or this week. **Save dollars with cheap flights from Portland Intl., PDX to Humberto Delgado, LIS** Sort your search results by price to find great deals on your flight from Portland to Lisbon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Lisbon from Portland currently is just CA $1,519 rising to CA $3,138\. Here are more money-saving tips: - Fly in May when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Lisbon - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! **Reasons to choose Expedia for your flight to Lisbon from Portland** Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Lisbon with Expedia today. ## Frequently asked questions ### How much is a flight from Portland Intl. Airport (PDX) to Lisbon/Portela Airport? ### Do I need to pay a cancellation fee if I cancel my flight from Portland Intl. Airport (PDX) to LIS? ### How do I find cheap flights from PDX to Lisbon Airport that have flexible change policies? ### How many hours is the flight from Portland Intl. Airport (PDX) to Lisbon/Portela Airport? ### How far is the flight from PDX Airport to Lisbon Airport? ### Which airlines fly direct from Portland Airport to Lisbon Airport? ### Are Portland Airport to LIS flight tickets cheaper when they're purchased at the last minute? \*Available to Expedia members.