Best Flights starting from $248
from$248economy
Ontario (ONT)
Wed, Jul 1
Roundtrip
Seattle (SEA)
Wed, Jul 8
from$248economy
Ontario (ONT)
Fri, Jul 3
Roundtrip
Seattle (SEA)
Fri, Jul 10
from$248economy
Ontario (ONT)
Sat, Jul 4
Roundtrip
Seattle (SEA)
Sat, Jul 11
from$248economy
Ontario (ONT)
Sun, Jul 5
Roundtrip
Seattle (SEA)
Sun, Jul 12
from$248economy
Ontario (ONT)
Mon, Jul 6
Roundtrip
Seattle (SEA)
Mon, Jul 13
from$248economy
Ontario (ONT)
Tue, Jul 7
Roundtrip
Seattle (SEA)
Tue, Jul 14
from$295economy
Ontario (ONT)
Thu, Jul 2
Roundtrip
Seattle (SEA)
Thu, Jul 9
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Other Options for This Route
Other Destinations
Ontario (ONT) to Denver (DEN) in July from $211
From $211
Ontario (ONT) to Reno (RNO) in July from $345
From $345
Ontario (ONT) to Albuquerque (ABQ) in July from $362
From $362
Ontario (ONT) to Philadelphia (PHL) in July from $400
From $400
Ontario (ONT) to Honolulu (HNL) in July from $472
From $472
Ontario (ONT) to Orlando (MCO) in August from $280
From $280
Flights from Other Cities
Denver (DEN) to Seattle (SEA) in July from $108
From $108
Sacramento (SMF) to Seattle (SEA) in July from $176
From $176
Oakland (OAK) to Seattle (SEA) in July from $197
From $197
Burbank (BUR) to Seattle (SEA) in July from $200
From $200
Kelowna (YLW) to Seattle (SEA) in July from $205
From $205
Columbus (Any) to Seattle (SEA) in July from $217
From $217
✈️ Flight Guide: Ontario (ONT) → Seattle (SEA)
Complete travel information for your July journey
Departing from Ontario (ONT) FAQs
Seattle-Tacoma International Airport (SEA) is served by a wide mix of legacy and low-cost carriers offering competitive economy fares, including Alaska Airlines, Delta Air Lines, Southwest Airlines and several international carriers on sale routes. For the cheapest economy flights from SEA, search flexible dates and compare low-cost carriers and basic economy fares, then book early or during sale windows. Book cheap flights from Seattle-Tacoma International Airport (SEA) now to lock in the best budget airfare.
For domestic economy travel from Seattle-Tacoma International Airport (SEA), arrive at least 90 minutes before departure to allow time for check-in, security screening, and moving between concourses. If you are checking a bag or traveling during peak holiday months (November–January) allow two hours; this reduces stress and lowers the risk of missing your budget connection. Check real-time TSA wait times and airline check-in deadlines before leaving for the airport.
Seattle-Tacoma International Airport (SEA) serves Seattle, Tacoma, Bellevue, Everett, and Portland-area travelers and offers convenient access to destinations like Vancouver (BC), Olympic National Park, and the San Juan Islands via connecting flights or ground transfers. Many budget travelers use SEA as a gateway to Pacific Northwest attractions and West Coast cities, so compare economy flight prices to maximize savings. Use multi-city or open-jaw search combinations if you plan to visit several nearby cities on one trip.
June often features early-summer sales and competitive economy fares from Seattle-Tacoma International Airport (SEA), especially on routes to warm-weather destinations and regional hubs. Booking 6–10 weeks in advance or monitoring fare alerts for mid-week departure dates can yield the cheapest prices; sign up for airline newsletters and fare trackers to get notified of SEA sales. Take advantage of price-drop guarantees or flexible ticket options when available for budget peace of mind.
To keep economy travel from Seattle-Tacoma International Airport (SEA) affordable, pack carry-on sized luggage to avoid checked-bag fees, enroll in TSA PreCheck if you travel frequently, and weigh your bags at home to avoid overweight charges. Compare basic economy vs. standard economy to understand restrictions like seat selection and change fees; sometimes paying a small premium for standard economy provides better value. Always check airline baggage policies before purchase to avoid surprise fees at the gate.
December is a high-demand month with peak holiday travel from Seattle-Tacoma International Airport (SEA), typically driving up economy fares, especially around Christmas and New Year's Eve. To find the cheapest economy seats in December, be flexible with dates, consider traveling earlier in the month, and use fare alerts; midweek departures often result in lower prices. If possible, book early and consider secondary airports or off-peak times to save on holiday travel.
Arriving at Seattle (SEA) FAQs
Economy Fare Hub (ECO) is a conceptual arrival hub representing the lowest-cost economy routing options and fare classes used by many online booking platforms to display cheapest available seats. When searching for flights, include Economy Fare Hub (ECO) as a target in your filters or use 'economy' and 'cheapest' modifiers to surface basic economy and discounted fares. For best results, combine ECO-focused searches with flexible dates and fare alerts to capture flash sales and price drops.
Economy Fare Hub (ECO) typically routes travelers to major regional and international hubs including Los Angeles, San Francisco, New York, Chicago, Dallas, and secondary gateways like Phoenix and Denver, depending on airline networks. It also implicitly covers nearby cities often paired with budget itineraries, such as Seattle, Portland, Vancouver (BC), and Spokane, giving travelers access to wide destination choices through low-cost connections. Use targeted searches with city modifiers to find cheap economy flights to these top destinations.
July is typically peak summer travel with higher demand, so cheapest economy arrivals into Economy Fare Hub (ECO) are less common unless you book far in advance or target midweek arrivals and secondary airports. Monitor low-cost airlines' seat sales and look for red-eye or one-stop itineraries to reduce cost; using keywords like cheapest economy flights and budget arrival options improves search results. Consider arriving slightly outside peak holiday windows to maximize savings.
Cheapest economy fares commonly labeled basic economy often restrict carry-on allowances, seat selection, and ticket changes; some carriers may only allow a small personal item, while checked bag fees apply. Review the specific airline's fare rules associated with your ECO booking and factor baggage fees into the total price to ensure it's still the cheapest option. If you need flexibility or baggage, paying slightly more for a standard economy ticket can offer better overall value.
When arriving at Economy Fare Hub (ECO), use regional buses, shared shuttles, commuter rail, or low-cost rideshares to reach nearby cities such as Seattle, Portland, Tacoma, or Bellevue affordably. Booking ground transfers in advance or using public transit apps can substantially reduce transfer costs compared with private taxis. For multi-city trips, compare flying into one city and out of another to combine cheap economy arrivals with convenient ground travel.
During shoulder seasons, find the cheapest ECO arrivals by searching flexible dates, using multi-city searches, and comparing low-cost carriers versus legacy airlines; shoulder months like September and October often yield the best bargains. Leverage fare alerts, clear cookies or use private browsing to avoid dynamic pricing, and try alternate nearby airports such as Portland or Vancouver (BC) for lower-cost arrivals. Always check total trip cost including transfers and baggage to confirm true savings.
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Events & Festivals Impact on Airfare | SEA Departures & ECO Arrivals
Major events and festivals influence airfare from Seattle-Tacoma International Airport (SEA) and arrival pricing into hubs like Economy Fare Hub (ECO). Annual events—such as Seattle Seafair (summer), Bumbershoot (September), holiday markets (December), and regional conventions—cause fare surges, so book early if your travel coincides with these dates. Use location-based keywords like Seattle events airfare and festival travel tips to align search visibility. Consider arriving slightly before an event or staying after to secure lower economy fares, and compare alternative nearby airports (Portland, Vancouver) for better pricing. CTA: Check event calendars and book cheap economy flights early for festival travel.
Best Time to Fly for Cheap Economy Fares From Seattle (SEA)
The best time to fly for cheapest economy fares depends on seasonality and route. For departures from Seattle-Tacoma International Airport (SEA), shoulder seasons (late September–November and January–early March) typically yield lower economy fares, while summer (June–August) and December holidays are peak and more expensive. Use long-term fare tracking and set price alerts, search midweek departures, and look for early-morning or late-night flights to capture lower prices. Use keywords like best time to fly from Seattle, cheapest months to fly, and economy airfare timing in search queries. CTA: Check flexible-date calendars to find the best time to fly from SEA and book cheap economy fares.
Direct vs. Connecting Flights | SEA Departures & ECO Arrival Savings
Choosing direct versus connecting flights affects both travel time and price. Direct flights from Seattle-Tacoma International Airport (SEA) to major destinations are faster but often more expensive in economy class, while connecting itineraries through hubs (potentially arriving at Economy Fare Hub (ECO)) can be significantly cheaper. Use keywords like direct flights from SEA, cheapest connecting flights, and one-stop economy fares when searching. When prioritizing price, compare multi-leg itineraries and factor in layover durations, connection reliability, and baggage transfer policies. CTA: Compare direct and connecting options to decide whether you prefer faster travel or the cheapest economy fare.
Airline Comparison for Cheap Economy Flights | SEA to ECO
Compare airlines by base fares, baggage policies, change/cancellation fees, and route networks when hunting cheap economy flights. From Seattle-Tacoma International Airport (SEA), Alaska Airlines, Delta Air Lines, Southwest, and several international carriers often compete on price and service; low-cost carriers may offer the lowest base fares but add fees for bags and seat selection. Use SEO phrases like airline comparison Seattle, cheapest airlines from SEA, and economy fare comparisons to guide searches. For arrival into Economy Fare Hub (ECO), evaluate carrier partnerships and codeshares that might provide cheaper connecting itineraries. CTA: Use a side-by-side comparison to find the cheapest economy flight that meets your needs.
Seasonal Travel Tips for Cheap Economy Flights | SEA & ECO
Seasonal factors heavily influence cheapest economy fares. For departures from Seattle-Tacoma International Airport (SEA), winter (Jan–Feb) and fall shoulder months typically present the best deals, while summer and December holidays are peak and more expensive. For arrivals into Economy Fare Hub (ECO), shoulder seasons and midweek timings yield the lowest prices; search with seasonal keywords like fall cheap flights and winter economy deals. Adjust packing for seasonality to avoid excess baggage fees, and watch for seasonal route additions or suspensions that affect availability. CTA: Compare seasonal fare calendars and book cheap economy flights during shoulder months.
Flight Times & Schedules | Seattle-Tacoma International Airport (SEA) to ECO
Flight time and schedules vary by route and carrier; direct flights from Seattle-Tacoma International Airport (SEA) to major hubs typically range from 1–6 hours depending on destination, while one-stop itineraries to Economy Fare Hub (ECO) or comparable arrival hubs may add 2–6+ hours in layover time. Use keywords like flight durations from SEA, Seattle flight schedules, and economy flight times in your queries. For the cheapest options, search for red-eye departures, early-morning flights, or midweek schedules when airlines often publish lower fares and have more available economy seats. Always check scheduled flight frequency seasonally since carriers add or reduce frequencies during peak and off-peak months.
How to Find Cheap Economy Flights | SEA Departure to ECO Arrival Tips
Cheap flights—especially economy-class fares—are found by combining several proven tactics: flexible date searching, multi-airport comparisons (for example Seattle-Tacoma International Airport (SEA) vs. nearby alternatives), fare alerts, and booking during off-peak windows or airline sale periods. Use primary keywords such as cheap flights from Seattle, cheap economy flights, and budget airfare in your searches. Consider low-cost carriers, basic economy fare classes, and red-eye or one-stop itineraries to reduce cost. Always tally baggage and transfer fees so the quoted cheap fare remains the best total price. CTA: Compare cheap flights from Seattle (SEA) to Economy Fare Hub (ECO) now using fare alerts and flexible-date tools.