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300 Seattle school bus drivers threaten strike as contract dispute stalls

Sep 22, 2026, 11:18 AM

zūm seattle school bus drivers...

A student exits a Zum Services school bus. (Photo courtesy of Zum Services)

(Photo courtesy of Zum Services)

Hundreds of Seattle school bus drivers are threatening to strike amid a contract dispute with Zūm Transportation.

Teamsters Local 174 said approximately 300 drivers have authorized a walkout, accusing the company of refusing to agree to higher retirement contributions.

No strike date has been announced.

“Zūm deeply values our Seattle drivers and the critical role they play in safely and reliably serving students and families every day,” Zūm Services told KIRO Newsradio in a prepared statement. “We are disappointed that negotiations have reached this point and remain focused on reaching an agreement that avoids a strike.

“Only one issue remains unresolved, and Zūm is prepared to return to the bargaining table at any time,” the statement continued. “Our priority is reaching an agreement as quickly as possible and avoiding disruption to the students and families who depend on school transportation every day.”

Jamie Fleming, a spokesperson for Teamsters Local 174, said the dispute began after the passage of House Bill 1248 — a law that requires contracted school bus companies to give their drivers the same benefits as drivers employed directly by school districts. The state would fund any increased costs.

“These increased costs would be borne by the state through the funding for the bill, meaning there was little incentive on the part of the company to pick a fight with the union,” Fleming said. “And yet, they did anyway, refusing to allocate funds for workers’ retirement as the law requires. Their continued refusal to bargain in good faith now has the group of 300 drivers on the brink of a major strike action.”

Teamsters Local 174 claimed Zūm’s inaction is denying bus drivers “a fair retirement.”

Bus drivers for Zūm previously voted to authorize a strike in 2023, one year after the transportation company agreed to a contract with SPS.

This threat of a strike comes just weeks after the Seattle Education Association (SEA), the union representing roughly 6,000 teachers and faculty, and SPS announced a tentative contract agreement late Sept. 1 — one day before the school year started — to avoid a strike.

SEA said teachers and other school employees were asking for better pay, smaller and more manageable class sizes, and support for special education services.

Zūm Transportation joins SPS, splits contract with First Student

SPS awarded a new contract — valued at over $68 million for the next three years — to transportation company Zūm Services back in 2022. The legacy provider, First Student, split the contract, valued at $135.6 million over the same period.

First Student had been the district’s sole yellow bus transportation provider for more than 30 years. In February 2022, SPS awarded the full contract to First Student. Zūm appealed the decision through a series of official protests, alleging the district mistakenly inflated the price of its bid.

Following that alleged mistake, SPS walked back its award of the full contract to First Student. The district then decided both companies would receive at least 40% of the overall commission.

First Student disputed Zūm’s claims, citing a “misunderstanding of procurement guidelines and the discretion afforded SPS.” SPS could not be reached for comment on either allegation.

This is a developing story, check back for updates

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