Title: Pasco to Porto cheap flights from $366 (PSC to OPO) - Expedia.com ![](https://images.trvl-media.com/place/603077/e0c840e3-ebbe-4f35-8964-b2f0ca1c1703.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/603077/e0c840e3-ebbe-4f35-8964-b2f0ca1c1703.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $366 Cheap Flights from Pasco (PSC) to Porto (OPO) [View $366 flight on Sun, Nov 15, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:PSC,to:OPO,departure:11/15/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:366.00&airProductToken=AQqwAQo9CNamARIEMjA1NRjPFCDMfCipnZ0DMOCenQM4VEAAWAFqBUxJR0hUcghPTFg5MU5CTHoKCMSYARIEMjYyMgo8CNamARIEMzk3MxjMfCDiMCiqoJ0DMKiknQM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMSYARIDMTUyCjEIwYwBEgQxNTI4GOIwIO5zKK-lnQMwtqadAzhWQAFYAWoFTElHSFRyCE9MWDkxTkJMEgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) ## Popular airlines from Tri-Cities Airport (PSC) to Porto Airport (OPO) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France [](https://www.expedia.com/Flights-Search?leg1=from:PSC,to:OPO,departure:4/20/2026TANYT&leg2=from:OPO,to:PSC,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.com/Flights-Search?leg1=from:PSC,to:OPO,departure:4/20/2026TANYT&leg2=from:OPO,to:PSC,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.com/Flights-Search?leg1=from:PSC,to:OPO,departure:4/20/2026TANYT&leg2=from:OPO,to:PSC,departure:4/27/2026TANYT&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_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:PSC,to:OPO,departure:4/20/2026TANYT&leg2=from:OPO,to:PSC,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:PSC,to:OPO,departure:4/20/2026TANYT&leg2=from:OPO,to:PSC,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](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 OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Pasco to Porto (PSC-OPO) Prices were available within the past 7 days and start at $366 for one-way flights and $779 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Sun, Nov 15 - Thu, Nov 26 PSC Pasco OPO Porto $779 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:11/15/2026TANYT&leg2=from:OPO,to:PSC,departure:11/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:778.23&airProductToken=AQqwAQo9CNamARIEMjA1NRjPFCDMfCipnZ0DMOCenQM4VEAAWAFqBUxJR0hUcghPTFg5MU5CTHoKCMSYARIEMjYyMgo8CNamARIEMzk3MxjMfCDiMCiqoJ0DMKiknQM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMSYARIDMTUyCjEIwYwBEgQxNTI4GOIwIO5zKK-lnQMwtqadAzhWQAFYAWoFTElHSFRyCE9MWDkxTkJMCrEBCjIIy5gBEgQxNTcwGO5zIICTASislJ4DMMyVngM4TEAAWAFqBUxJR0hUcghWTFg5MU5CTAo9CMuYARIENjA1ORiAkwEgzHwonpeeAzDJm54DOFZAAVgBagVMSUdIVHIIVkxYOTFOQkx6CQjEmAESAzE2Mwo8CMuYARIENzA0MRjMfCDPFCi5nZ4DMIifngM4VkABWAFqBUxJR0hUcghWTFg5MU5CTHoJCMSYARIDNzYyEgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Sun, Nov 15 - Thu, Nov 26 PSC Pasco OPO Porto $783 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:11/15/2026TANYT&leg2=from:OPO,to:PSC,departure:11/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:782.83&airProductToken=AQqmAQo9CMuYARIENzA3MxjPFCDMfCiGnZ0DML2enQM4VkAAWAFqBUxJR0hUcghWTFg5MU5CTHoKCMSYARIEMjYyMgoxCMuYARIDNjU2GMx8IICTASiNo50DMO2mnQM4VkABWAFqBUxJR0hUcghWTFg5MU5CTAoyCMuYARIEMTU3MRiAkwEg7nMotrCdAzDWsZ0DOExAAVgBagVMSUdIVHIIVkxYOTFOQkwKsQEKMgjLmAESBDE1NzAY7nMggJMBKKyUngMwzJWeAzhMQABYAWoFTElHSFRyCFZMWDkxTkJMCj0Iy5gBEgQ2MDY1GICTASDMfCiwlp4DMNaangM4VkABWAFqBUxJR0hUcghWTFg5MU5CTHoJCMSYARIDMTYxCjwIy5gBEgQ3MDQxGMx8IM8UKLmdngMwiJ-eAzhWQAFYAWoFTElHSFRyCFZMWDkxTkJMegkIxJgBEgM3NjISCggBEAEYASoCS0wYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Tue, Oct 13 - Thu, Oct 22 PSC Pasco OPO Porto $835 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:10/13/2026TANYT&leg2=from:OPO,to:PSC,departure:10/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:834.23&airProductToken=AQqwAQo9CNamARIEMzc0NBjPFCDyEijlq5oDMM6smgM4VEAAWAFqBUxJR0hUcghPTFg5MU5CTHoKCMSYARIEMzg5Mgo8CNamARIEMzk5MBjyEiDiMCiKrZoDMOKxmgM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMSYARIDMjIwCjEIwYwBEgQxNTI4GOIwIO5zKPCzmgMwgbWaAzhWQAFYAWoFTElHSFRyCE9MWDkxTkJMCrEBCjIIy5gBEgQxNTcwGO5zIICTASiQipsDMKaLmwM4VkAAWAFqBUxJR0hUcghPS1g5MU5CTAo9CNamARIEMzk0NxiAkwEgzHwo7IubAzD-j5sDOFRAAVgBagVMSUdIVHIIT0tYOTFOQkx6CQjEmAESAzE2MQo8CNamARIEMjQ5ORjMfCDPFCidk5sDMOyUmwM4VEABWAFqBUxJR0hUcghPS1g5MU5CTHoJCMSYARIDNzYyEgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Tue, Oct 13 - Thu, Oct 22 PSC Pasco OPO Porto $836 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:10/13/2026TANYT&leg2=from:OPO,to:PSC,departure:10/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:835.83&airProductToken=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) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Tue, Oct 13 - Thu, Oct 22 PSC Pasco OPO Porto $842 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:10/13/2026TANYT&leg2=from:OPO,to:PSC,departure:10/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:841.33&airProductToken=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) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Tue, Oct 13 - Thu, Oct 22 PSC Pasco OPO Porto $843 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:10/13/2026TANYT&leg2=from:OPO,to:PSC,departure:10/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:842.93&airProductToken=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) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Tue, Oct 13 - Thu, Oct 22 PSC Pasco OPO Porto $846 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:10/13/2026TANYT&leg2=from:OPO,to:PSC,departure:10/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:845.52&airProductToken=AQq7AQo9CMuYARIENjg3OBjPFCDyEiiMqZoDMPOpmgM4VkAAWAFqBUxJR0hUcghWTFg5MU5CTHoKCMSYARIEMTY0NQo8CMuYARIENzA3NBjyEiCpUSj5sJoDMIuzmgM4VkABWAFqBUxJR0hUcghWTFg5MU5CTHoJCMSYARIDNzA1CjwIy5gBEgQ4MjE3GKlRIO5zKNu6mgMw-r2aAzhWQAFYAWoFTElHSFRyCFZMWDkxTkJMegkIxJgBEgMxMTQKsQEKMgjLmAESBDE1NzAY7nMggJMBKJCKmwMwpoubAzhMQABYAWoFTElHSFRyCFZLWDkxTkJMCj0Iy5gBEgQ2MTA0GICTASDMfCiYjpsDMLmSmwM4VkABWAFqBUxJR0hUcghWS1g5MU5CTHoJCMSYARIDMTY1CjwIy5gBEgQ2Njg5GMx8IM8UKJ2TmwMw7JSbAzhWQAFYAWoFTElHSFRyCFZLWDkxTkJMegkIxJgBEgM3NjISCggBEAEYASoCS0wYASIECAEQASgCKAMoBDAB) ![Virgin Atlantic](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/VS.gif) Sun, Nov 15 - Thu, Nov 26 PSC Pasco OPO Porto $853 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:11/15/2026TANYT&leg2=from:OPO,to:PSC,departure:11/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:852.23&airProductToken=AQqwAQo9CNamARIEMjA1NRjPFCDMfCipnZ0DMOCenQM4VEAAWAFqBUxJR0hUcghPTFg5MU5CTHoKCMSYARIEMjYyMgo8CNamARIEMzk3MxjMfCDiMCiqoJ0DMKiknQM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMSYARIDMTUyCjEIwYwBEgQxNTI4GOIwIO5zKK-lnQMwtqadAzhWQAFYAWoFTElHSFRyCE9MWDkxTkJMCrIBCjIIy5gBEgQxNTcwGO5zIICTASislJ4DMMyVngM4UkAAWAFqBUxJR0hUcghOTFg5MUtCTAo9CNamARIEMzk0MhiAkwEg8hIo_pWeAzCIm54DOFRAAVgBagVMSUdIVHIITkxYOTFLQkx6CQjEmAESAzA1Nwo9CNamARIEMzY5MBjyEiDPFCiDoJ4DMPGgngM4VEABWAFqBUxJR0hUcghOTFg5MUtCTHoKCMSYARIEMTcxMhIKCAEQARgBKgJWUxgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Sep 15 - Tue, Sep 29 PSC Pasco OPO Porto $985 Roundtrip found 19 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:9/15/2026TANYT&leg2=from:OPO,to:PSC,departure:9/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:984.96&airProductToken=AQqiAQo0CNWCARIENTU3OBjPFCCycSjs8ZcDMPHylwM4TEAAWAFqCEVDT0JBU0lDcghMSEk5MFRCUQo0CNWCARIEMjY4MRiycSCYXSi29pcDMID5lwM4TEABWAFqCEVDT0JBU0lDcghMSEk5MFRCUQo0CNWCARIEODExMxiYXSDucyiY_pcDMKiBmAM4TEABWAFqCEVDT0JBU0lDcghMSEk5MFRCUQqiAQo0CNWCARIEODA4NBjucyCYXSjjipkDMLmOmQM4TEAAWAFqCEVDT0JBU0lDcghMS0k5MFRCUQo0CNWCARIEMjM4NBiYXSCycSiLkJkDMIKTmQM4TEABWAFqCEVDT0JBU0lDcghMS0k5MFRCUQo0CNWCARIENTU3OBiycSDPFCjhmJkDMOOZmQM4TEABWAFqCEVDT0JBU0lDcghMS0k5MFRCURIMCAEQARgBKgJVQTIAGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Sep 15 - Wed, Sep 30 PSC Pasco OPO Porto $1,057 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:PSC,to:OPO,departure:9/15/2026TANYT&leg2=from:OPO,to:PSC,departure:9/30/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1056.62&airProductToken=AQqjAQo1CMSYARIENDA0NhjPFCDyEiig85cDMIj0lwM4RUAAWAFqCU1BSU5CQVNJQ3IIVkhYOTFOQkwKNAjEmAESAzcwNRjyEiCpUSj59ZcDMIn4lwM4RUABWAFqCU1BSU5CQVNJQ3IIVkhYOTFOQkwKNAjEmAESAzExNBipUSDucyjW_5cDMPqCmAM4RUABWAFqCU1BSU5CQVNJQ3IIVkhYOTFOQkwKpgEKNgjEmAESBDk2NzUY7nMggJMBKNCSmQMw5pOZAzhFQABYAWoJTUFJTkJBU0lDcghYS1gwNk5CTAo1CMSYARIDMTQzGICTASCSASjUlJkDMMeZmQM4RUABWAFqCU1BSU5CQVNJQ3IIWEtYMDZOQkwKNQjEmAESBDQwMTcYkgEgzxQoz56ZAzCUn5kDOEVAAVgBaglNQUlOQkFTSUNyCFhLWDA2TkJMEgwIARABGAEqAkRMMgAYASIECAEQASgCKAMoBDAB) ## Frequently asked questions ### How much does a flight from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro) cost? ### What is the cheapest month to fly from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### Which airlines fly direct from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### What is the cheapest airline that flies from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### How do I find cheap flights from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### What is the best time to fly from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### What is the earliest flight from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### How long does it take to fly from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### Can you fly business or first class from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ### How do I earn miles on a Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight with Expedia? ### Is it cheaper to buy a plane ticket from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro) at the last minute? ### Is it cheaper to book a Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight and hotel package? ### Can I cancel or change the date of my flight from Pasco, WA (PSC-Tri-Cities) to Porto (OPO-Dr. Francisco de Sa Carneiro)? ## Travel information | Origin airport | Tri-Cities | | ------------------- | ----------------------------------------------- | | Destination airport | Dr. Francisco de Sa Carneiro | | Airlines serving | Air France, British Airways, Delta, KLM, United | | Roundtrip price | $778 | | Distance | 5034 mi | ## Book with confidence # Pasco to Porto Flights The cheapest times to fly from Pasco to Porto 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 Pasco to Porto are during the month of November. You can find some of the cheapest flights from Pasco to Porto with Expedia's search tool and vast selection of airlines. The best time to book a flight from Pasco to Porto Sunday is one of the best days to book for cheap flights from Pasco to Porto: 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 Pasco to Porto 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 Pasco to Porto in 2026\. You can also book with separate airlines for your outbound and return journeys, from $366 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 Pasco to Porto 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](https://www.expedia.com/package-deals). Bundling together your Pasco to Porto 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\. 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